"That works too! Don't worry, I'm super unlikely to actually get it that wrong. I'm going to use literally the tiniest amount of blood I can separate out. And the spell's just supposed to be two seconds of happy, so it's not like there's much room for it to go haywire."
"If you say so. I will try not to let you do anything irresponsible with your magically induced delight."
Ari draws out his circle. He makes a pin out of the wall and uses it to collect a tiny drop of the blood from the cup, which he sets down at the edge of the circle. He wipes the drop of blood on a particular rune in the circle, and starts his brief incantation.
When Ari created this cup, he neglected to give it a flattened base.
As he finishes the chant, the bowl upends itself directly onto the active rune, igniting about ten times as much blood as the spell called for.
"Winter?"
"Hiiiiiiiiii!" he giggles.
"Are you all right?" she asks. "And will anything unfortunate happen if I clear the smoke with a breeze?"
Ari considers this very seriously. "Clearing... is good. I'm great! I'm great. Hi!"
"I don't think you meant to use that much blood," she says. "What did it do?"
Ari convinces his limbs to work, pushes himself off the ground, and teeters over to hug Promise. Once he has reached an appropriate location to do so, he appears to realize that he would probably crush her like a bug if he tried to hug her properly, and instead flumps down near her and embraces her calf.
"You're nice. I like you better than faeries."
Ari decides that he wants to stick his hand into the floor! He pokes it experimentally; it refuses to cooperate. He tries to remember how to magic. "Promiiiiise? How do I magic?"
"I don't know how to do your magic, I only know how to do mine. What are you trying to do?"
"I want to stick my hand in the floor! It feels like pudding, it's fun! But it feels like rock instead."
What else is fun? "Do you know if there's anybody I can fight? That'd be fun."
"Not right now. We're pretty far away from anybody else and don't want to make them annoyed with us anyway." Pat pat.
Ari seems to have exhausted his list of things that are fun.
In lieu of actual fun things, he is willing to lie on the floor and be happy!