I built a deck I call 'Bant Shenanigans' to hop onto the token theme that's all over today's Standard. One core interaction in the deck is to play [[Doubling Season]], then play [[Oko, the Ringleader]] which I can then immediately ult.
The problem is, I'm not sure Arena is doing it right and I'm sure it's not doing it gracefully. Oko's ult creates two copies of Doubling Season, when then apply to any tokens that are also copied, leading to 2x2x2=8 copies of all tokens you have in play. If you have an appreciable number of tokens already in play when you do this (and you should) then the game can't handle it. I don't know the exact number but at some point the game crashes and ends in a draw. It probably doesn't help if you have token generators ([[Carrot Cake]]) or permanents that interact with tokens ([[Caretaker's Talent]], [[Enduring Innocence]]). Either the number of tokens or the number of interactions makes Arena glitch out and give up.
Still, it's a fun deck. I'm continuing to play it, just carefully.
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