Verne init: 11

Bolt init: 14

Grandpa Init: 11

Sitting on Black he pushes him to dash forward, staying a bit to the left side near the houses, but getting within 90ft of 2 of the giants. After which he points his wand at the nearest giant, with a movement to the one next to it, casting Tasha's Mind Whip at 3rd level to target both of them. (DC13 Int save)

Wild magic roll due to previous Tides: 66

Quote from See_Ess >>

Verne init: 11

 Verne pushes his horse forward, whispering calming words to it as he moves. If he gets within range he follows Grandpa's lead and lets loose with his own offensive magic on the same nearest giant.

Scorching Ray 

Ray 1: 16 for 10

Ray 2: 14 for 6

Ray 3: 20 for 7

Crit roll: 7

((I hate the dice roller sometimes. It was a 25 on the last one but it's rerolled not just the attack roll but the damage roll too. Disregard the crit roll as now it doesn't show.))

(Use combat dice rolls for auto rolling crit damage)

Keller is itching to fire off a chaos bolt, but he's certain that at this range, it'd fall short. If he moved forward,  he could probably hold it and wait for them to come in range...

Ayen brings Bolt back up to normal size, able to tailor the magic so her weapons and armor don't continue to grow larger and more unwieldy.  ((Don't get the 1d4, but can attack without the disadvantage you'd otherwise have for being small.)) His horse flicks its ears in a horrifying manner, Ayen trembles in terror and scampers forward, imbuing his staff with power.

 Mean Grandpa preys on the intelligence of the giants, as he whips into their minds. 

INT Save: -1
INT Save: 14

The both look dumber, if that's possible, but it could also be they are surprised by the lightning that lances out of Grandpa's fingers into his own mount, which begins twitching underneath him, throwing him about.

 An excellent rider, Verne and the spare mount charge forward, pulling up within range to launch a blistering salvo of fire at the giant to the south. The flames pummel the giant, and the street slowly fills the stench of charred giant. ((No worries, I'll trust you on the crit, but as SF mentioned, if you use the combat roller, it'll factor that in for you.))

Bryn dashes forward and ducks between two buildings, but isn't able to move far enough to really hid well, if they come past the edge of the building, he'd be in plain sight. ((Could dash instead of hide to get further back?))

Keller can move first - my counting had the giant at 105 feet from his starting position but maybe that’s wrong. Either way!

BB charges forward and fires off a firebolt at the foremost living giant then has his horse swing into the ally SW of the foremost dead giant where he'll dismount.

 Attack: 5 Damage: 15

Black con save: 17

If failed:
Animal handling grandpa: 22

When Black is hit with the lightning of Grandpa he tries to throw him off. Luckily grandpa knows his steel defender well, as he built it after all, and stays on him and gets it to calmdown again.

Storm will dash towards the giants. Has he still an active tides of chaos to use or does he need to cast a spell still to reset it?

((Storm's Tides is still ready to surge next time he casts, as far as I know?))

Ok, so no tides available to use and have to cast a spell yet to reset it. Thanks. Storm will just dash this round.

((If Keller moves 30 ft forward, he'd still be 140 from the giants. If you're mounted, you could get within range on your horse, but the hiding in rubble is hard for horsies to do. The red giants are the bodies of the ones you killed. They can't be ridden over, but could be climbed over/provide cover, so I left them on the map.))

Rusty will sigh, dodge, and start trudging towards the new giants.

BB fires off a shot to distract the giants from him ducking into an alley.

Grandpa manages to stay mounted on Black.

Rusty  begins marching towards the giants... again.

Randy and Meta charge forward on their horses, unleashing a primed chaos bolt each, a roar of cold from Randy, and a crackle of lightning from Meta. They move heel their horses to peel off into side alleys, when Meta turns into petunia in a clay pot, topples off the back of the horse and shatters, before reverting to his normal form, prone on the ground.

Randy Attack: 25 Damage: 20
Surge: 6

Meta Attack: 23 Damage: 19
Surge: 80

((Storm, are you dashing on foot, or using your mount?))

((Was that using dash as an action and hide as my Cunning bonus action?))

((Yes, though there isn't really a spot to hide where you are on the map. You could clamber through a window and hide in the building to the west, but what I was saying before was that if you wanted to use cunning to dash, you could get on the back side of the building to your east.))

Storm is on foot. He would have been leading his horse, but would release it to move forward on foot.

Storm dashes up near Grandpa.