((Can BB go through a window or a door of the place he is next to and then out the other side? Then into the next building the same way? How far can he get?

He isn't being sneaky about it, crashing through is fine.))

Bolt finally has a GIANT target in front of her and her magic just breaks out of her with no stopping it. 

Again, she hurls a chaos bolt, this time straight into the face of the nearest giant: 10 for damage 12 this time accompanied not by lightning, but by the frightening growling of nearing thunder [using thunder damage].

Wild Surge because Advantage: 7

(Forgot surge rolls; I used Tides of chaos last round; did that mean it triggers automatically so I get it back?)

Here at least both rolls:

trigger: 5

Wild magic: 91

Black, with Grandpa on his back scoots around the illusory dragonborn to the northern alley, lashing out at the two rock throwing giants.

Pale Giant INT Save: 6
Sunburned Giant INT Save: 1

They seem stupefied.

As Grandpa casts the spell, his skin changes, even under the glittering sheen of protective magic. 

 Red perches atop a roof and his eyes glow red before he opens his beak and a bolt of force lances past the giant.

((BB, you can get through the building  you're standing next to, and just inside the building to the east, south of the giant if you take your move and dash to do so.))

Bolt sends a deafening roar of chaotic thunder slamming into the lead giant, her form cracking and sparking with potential.

 Meta unleashes chaos of his own, a mass of acid slamming into the same giant that Bolt hit. The thunderous impact had knocked a bit of wind from him, and he was just trying to get his breath back when he takes a face full of acid.

Attack: 14 Damage: 10

Storm strides straight to the first of the giants, and slashes at it with his greatsword, suing tides of chaos to give himself advantage.

Attack: 24 Damage: 9

After the attack he uses his bonus action to cast divine favor

Surge: 65

When he's up, Rusty will send a whistling bolt of flame hurtling at the closest giant, while moving up towards it.  He'll then summon his trusty ghost hammer and commence the pounding.

(Using tides as well on the fire bolt, casting spiritual weapon)

Attack: 25 Damage: 11 fire

Spiritual: 14 Damage: 9 force

Wild surge: 15

((@ Storm, Not able to get there without dashing, it is about 45 ft away.))

((Can I get DC 15 WIS Saves from everyone except Grandpa, Black and Randy?))

Red wis save: 4

Rusty moves up, blasting the giant, who is looking quite hurt at this point, and looking at all of you as if wondering if the big dragonborn isn't the biggest threat out here... but it's the biggest, it must be the most powerful, right?

As Rusty calls forth his spectral hammer, a metal plate of his armor scrapes against his body, giving off a sound not unlike a biological being tooting. The incongruity of a metal man breaking wind is strangely hilarious, even Red clacking their beak in a mimicry of laughter as they fall on their side, sliding along the edge of the roof before falling into the alley below.

3 falling damage

 Meta's save: 24

 Meta isn't amused, and looks around derisively as others in the company go into giggle fits at a robot fart.

((BB does so!))

((Alright, you'd be outside the giggle fest, so don't need a WIS from BB. ))

Keller WIS save using Tides of Chaos for advantage: 1 7

Bolt WIS save: 9 ((even bless wouldn't help))

Bolt hears the noise and throws herself to the ground with laughter. Her impact makes the ground tremble. 

Ayen dashes forward to the giant, standing right in front of him. As he does, he uses his new magic to imbue his staff with more magic and when he reaches the giant, he swings his quarterstaff at the enemy, using the chaotic magic's powers to guide his hand.

Action: Dash.
Move (+dash): It's hard to tell exactly where, but I hope he can reach within melee range of the near giant?
Bonus Action: Using Quickened Spell to cast Booming Blade as a bonus action, then make the attack with Tides of Chaos to gain advantage. Attack: 25 Magical Bludgeoning Damage: 11 + Thunder Damage: 2. If the giant willingly moves at least 5' until the start of Ayen's next turn, it'll take 6 more Thunder damage.

Oh, a Wis save: 13.

Verne's WIS save 20

Storm would then just continue moving. Not quite sure how anyone else is within range as I believe Storm is the only one here who has, every single moment since this started, been doing nothing but dashing towards the enemy...

Wis save: 8

((Storm did cast mirror image on himself, and I didn't interpret 'deliberate stride' as meaning that he was dashing, so think he'd only been moving 30' per round. I'll go ahead and move him up in range to use that attack roll.))
((@Everyone, with this many PCs, make sure your intent is clear, and check that I've done what you wanted on the map!))

Storm closes with the giant and he and his duplicates hack into it. He lights up his greatsword, lightning crackling down its length before blasting into the giant!

 Between blasting the giant, and the sound Rusty let loose behind him, Storm is overcome with a case of the giggles.

He's not the only one, as Keller and Bolt both go down as well. Ayen and Verne join Meta in seemingly being unaffected.

((Still need WIS save from Rusty and Bryn.))

Ayen rushes up and whips their staff forward, it impacts with a whistling crack! (*Ayen, if you'd like to put some flavor on how you finish off the first giant, go for it!))

(Thanks, I honestly forgot about mirror image. Thanks for moving up)

Tbh can't remember if I blessed myself, but Wis save: 10