BB keeps on heading through the new building he is in dashing to get into the house beyond...the rubble?

BB hurries through the house, exiting near Randy, making it through the rubble to the next house, catching a glimpse of the pale giant before he spins and puts his back to the wall, breathing heavily.

Rusty will throw a chaos bolt (third level), using tides of chaos for advantage.  He'll also continue swinging away with his big spectral hammer . . .

Chaos: 19(4) Damage: 15

Spiritual: 17(3) Damage: 10

Psychic damage for the chaos bolt.

Surge roll: 37

Rusty sends a warbling grey orb into the giant on the left, as his hammer begins floating in their direction at a more sedate pace. ((Can only move 20 ft)) 

He feels a surge of crackling warmth. 

 The two giant just hit stomp forward, swinging massive clubs down at Ayen repeatedly, one an uprooted tree, the other swinging a timber from a building.

Greatclub Attack: 12 Damage: 20
Greatclub Attack: 12 Damage: 17

Greatclub Attack: 13 Damage: 18
Greatclub Attack: 18 Damage: 17

The first giant misses twice, but in dodging the attacks, Ayen isn't able to evade the club of the second giant, which connects with him twice, shattering the protective sheen that had been encasing Ayen since the fight in the vineyard, the remnants puffing into glitter that drifts around his feet. The second club rips through the bolster that the summoned bear provided, but they provide a welcome buffer, keeping him conscious.

Randy drops a chaos bolt on the giant nearest to him, calling on the chaos improve his chances of hitting.

Chaos Attack: 11 Damage: 20

A massive snowball slams into the giant, encasing it momentarily in freezing slush that sloughs off and rapidly sublimates back into chaotic energy.

Wild Surge: 93

His eyes glow with a blue fire that licks up through is eyebrows but doesn't seem to harm him.

 ((If not for the barrier and temp HP, that would have been just enough to have dropped Ayen on those two hits!))

(Eee... how lucky. Now just need to roll 3 good saves in a row.)

Concentration check, DC 10: 21.

Concentration check, DC 13: 18.

Wis Save, to see if he acts during his turn (I know it's not his turn yet, but might as well roll that now), DC is... 14 I think?: 16.

((DC is your DC 14 Sorcerer save, so you're all good! Concentration held, and you have your turn to act!))

Verne sees Ayen get hit, hard. This spurs him into an offensive move. He hurls three motes of flame at the giant who struck Ayen.

Ray 1 18 for 8

Ray 2 11 for 9

Ray 3 17 for 3

(Upcast @ 3rd level)

Surge 16

Patter WIS save: 14

Verne hits the giant lightly with his first ray of flame, but the second and third go wide.

Patter's able to pull himself together.

(See_Ess, if you upcast Scorching Ray, you have 4 rays.)

Now that Salkur's strange sheen is broken, Ayen takes the second hit hard. The force of the blow pushes him back a few feet, but he manages to hold concentration on his spell. He has been hit so many times over his long mercenary life, he knows how to take a hit. 
Now, after subduing an urge to puke, Ayen runs forward towards the giants. Scraping his quarterstaff on the stones beneath as he runs, the friction - aided by a little bit of magic - causes the tip of the staff to kindle with green fire. Then, when he reaches the giants, Ayen jumps and spins at the same time, allowing his staff to arc horizontally in an attempt to hit both giants with a single swing. Then, he takes a moment to move the magic inside him to be more balanced in the ways he can use it.

Mechanically:
Ayen moves to a spot where he's 5' of both giants.
Action: Cast Green-Flame Blade. First attack goes against the green-haired giant, using Tides of Chaos to gain an advantage. Attack: 21 Magical Bludgeoning Damage: 15 + 6 fire damage. If the attack hits, the sunburnt giant takes 9 fire damage.
Then, because of his Horde Breaker feature, Ayen gets to make another attack against the sunburnt giant. Attack: 17 Magical Bludgeoning Damage: 9.
BA: Convert 1 spell slot of 1st level to 1 sorcery point.

Grandpa moves towards the pile of rubble behind the giants, partly on black and than 10ft more on foot (I believe) so he is within 20ft of the closest giant and within 60ft of the other giant. Black will move besides him., After he moves into position he flicks his wand using the magical power inside to spray out a greenish looking brew.

Casting Tasha's Caustic Brew at 2nd level. Need a DC16 Dex save or be covered in acid, which burns for 4d4 damage at the start of the giants turns.

Red wis save: 5

Bolt Wild Surge 54

Bolt WIS save with bless 6

Maybe something is telling Bolt that she needs more laughter in her life. She hasn't laughed in years, maybe an ironic smirk here and there, but that was it. But today, today the flood gates are open, and no one and nothing will stop Bolt from laughing today. 

Forgot wild magic table roll after tides of chaos last turn: 71

((I’m having a hard time figuring out exactly where I need to be to make a melee attack on the top giant. If I go north around the cart next to me, how much of my 30’ movement will be used to get in range?))

Ayen dashes to the giants and swings, his already enchanted staff bursting alight as he swings into the giant on the left, the flame leaping from it, but falling short of the second giant. 

((I know the size of the icons isn't ideal, but the two giants not base to base, so it doesn't jump. It's not you being in 5' of  both, but the second target being within 5' of the first.))

Grandpa urges Black south down the alley before scrambling up the rubble to unleash acid on the giant below him. Across the battle, Red keeps laughing mechanically.

((I'm not quite clear on positioning, it sounded like you wanted to hit both, but range of the line of acid is only 30', so you'd need to be closer than ~60' from the lower one to include it. Clarify that for me and I'll make the necessary rolls for them.))

Grandpa feels his skin harden into a tough, horn-like material.

 The new half-elf form of Bolt finds herself now completely nude, everything except her greataxe and her ring piled neatly nearby. It's got to be one of the funniest things she's ever seen and she rolls about on the dusty road. Rolling into town to get her revenge on giant kind, and now she's big, no longer a dragonborn, and naked?! HAHAHAHHA!

Bryn is able to get in range to lay the hurt on the north giant (would take full 30' to get there).

 Meta unleashes a chaos bolt at the south giant, fire belching across it.

Attack: 22 Damage: 16

64

 He curses up a storm...

 Red feels Meta's ire directed at them. ((DC 15 WIS save or take 3 psychic damage, so if they fail the save and take the damage, it would trigger another save attempt from the laughter.))

((I penciled in the 'hitboxes' for the giants to make things a bit clearer hopefully?))

BB moves NW three times, hacks at the red giant with his battle axe yelling gleefully,

"Blake the Giant Slayer!"

 Attack: 12 Damage: 13

He then action surges and blasts the red giant with three charges from the ring!

Attack: 19 Damage: 24

Quote from Spiderwrangler >>

Grandpa urges Black south down the alley before scrambling up the rubble to unleash acid on the giant below him. Across the battle, Red keeps laughing mechanically.

((I'm not quite clear on positioning, it sounded like you wanted to hit both, but range of the line of acid is only 30', so you'd need to be closer than ~60' from the lower one to include it. Clarify that for me and I'll make the necessary rolls for them.))

Ah sorry, looked at the wrong range it seems. In order to hit them both, I believe I need to move one square diagonally forward than.

Red wis save for damage: 12
If failed, which I expect save for laughter: 15

Grandpa gets in position to hit both giants with his acid, but only gets past the crude hides covering the near one, the acid eating into him and giving off an acrid whiff of smoke. 

Pale DEX Save: 18
Sunburned DEX Save: 5

Red finds Meta's insults hilarious.

 BB scurries in and swings at the south giant, his blade finding no purchase, just impacting a swatch of wet horse hide. He extends his hand and triggers the ring, a ram-shaped blast impacting the giant in the left shoulder and driving it backwards, as BB angles it away from Ayen. The giant bellows in surprise as its walloped and driven back into the other giant. 

Pale Giant STR Save: 7
Sunburned Giant DEX Save: 18

The pale giant tries to plant his feet to resist the sunburned giant stumbling into him, but he steps on a bit of rubble and can't get planted as they both stumble away from BB and go down to their knees, narrowly missing Ayen, Bryn, Grandpa and Black. The impact shakes the cobbles as the pair roar in what is likely a mixture of pain, frustration and confusion. 

((The two giants are considered prone.))