It's finally time, everyone, for some Kamigawa-deck action!

This is the kind of jank the channel lives for, of course. I'd attempt this but I would splash Ardent Elementalist maybe... sort of expensive at 4 mana but making copies of her would return more instant spells back to hand and maybe loop the effects more. Mind Sorcerer does it too and even adds dice rolls (5 cmc though). Still, it can be nice if you leveled up the Barbarian class. Enough triggers and the dice roll buffs can win the game. Mirror box could be ok for copying legendary creatures since Delina's copies will exile at the end of combat.

infinitedraw

Feel free to change it however you need to make it playable for you. Mana base should probably be optimized. Use Delina and Barbarian Class to make an army of Orvars. Before combat is over, cast any instant targeting a non-legendary Orvar, and then cast another instant targeting a Barbarian Class. With the army set up, use Tamiyo's Safekeeping or Light the Way to clone whatever permanent possible for tons of mana. You can use Absorb Identity on a Land Creature (emergent sequence land or Lair of the Hydra) to save your Orvars from a boardwipe, or as a combat trick after declaring them as blockers, because they'll become lands until end of turn. Or you can turn your army of Orvars into whatever else is on the board. Once you have tons of mana, cast Crackle With Power, targeting your opponent and possibly one of your permanents to make more clones. Shigeki to channel and return cards from your graveyard. EDIT: Swapping in Mindlink and Surgehacker mechs. It's really great to create an army of 4/3 Flying non-legendary Orvars, and making tons of surgehackers for gigantic removal. 4 Delina, Wild Mage (AFR) 138 7 Island (NEO) 286 4 Orvar, the All-Form (KHM) 70 6 Mountain (NEO) 290 2 Surgehacker Mech (NEO) 260 3 Barbarian Class (AFR) 131 4 Absorb Identity (KHM) 383 2 Spirited Companion (NEO) 38 4 Lair of the Hydra (AFR) 259 4 Tamiyo's Safekeeping (NEO) 211 3 Emergent Sequence (STX) 129 2 Crackle with Power (STX) 95 2 Mindlink Mech (NEO) 62 4 Light the Way (NEO) 24 2 Shigeki, Jukai Visionary (NEO) 206 7 Plains (XLN) 260