Through infinite flickers you can do almost anything: infinite life, infinite damage, endlessly buffing up your other creatures, making tokens, the works
Tasha, the Witch Queen I was struggling to find a play-from-exile planeswalker that could be used as a commander up until I stumbled upon Tasha, the Witch Queen
P/T Number 14 Language English Legal Formats Commander, Legacy, Modern, Pioneer, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Pauper, Standard, Timeless Rulings (6/22/2015) If multiple nontoken creatures you control die, then Liliana, Heretical Healer's ability will trigger that many times
Granted, it's an expensive card, and even though its prepared ability is powerful, the card itself is quite difficult to get into play
#10 Hare Apparent Set: Foundations Market Price: $2.96 Like Cid, Timeless Artificer, Hare Apparent dares players to jam as many copies of this card into their deck as they can, which inflates the demand for this card over similarly popular cards that are limited to four copies per deck (or one in Commander)
If opponent casts a Summon spell that does not match the color of one of the creatures under your control, that spell is countered, says the card
