Mixed Bag Those are the big groups of cards I have definite ideas for, though there are a number of other cards that get the gears turning
If a permanent entering the battlefield at the same time as Elesh Norn (including Elesh Norn itself) causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time
He's just a 1/1, but he also only costs 1 black mana
4 loyalty Player 2 - During his or her upkeep, Player 1 uses Teferi, Master of Time to use its first ability to +1 and Loot
To start with, the ability to pay three life to enter the battlefield untapped is a massive advantage over not having that ability
(The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.) Creature - Human Ooze Germination Practicum Put two +1/+1 counters on each creature you control