Protecting that second casting with Memory Lapse might be wiser than using that counterspell on the first casting, but my basic point is that this deck should be able to pull off the a Second Sun win
Whenever Mishra, Lost to Phyrexia attacks or enters the battlefield, you get to choose three from having an opponent discard two cards, dealing three damage to something, destroying an artifact or planeswalker, giving your creature menace and trample, giving enemy creatures -1/-4, or creating two Powerstone tokens
Illustrated by Carlos Palma Cruchaga Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Legal Comp
Notably, in this set, one of those two cards is always a Vehicle or a Mount, ensuring you always have a ride ready to roll
What if you want to start from scratch, with a brand-new Arena account