Chien-Pao is a super cool card, and also makes up one of the best archetypes in the standard format right now
Worldknit - this specifically requires you to play every card in your draft pool, that would mean a deck with about 15 more cards (depending on how many other conspiracies were drafted) than the minimum, though this only applies to drafts using the specific set
Fezandipiti ex will continue to see play until the day it rotates in the far future, much like how Lumineon V and Rotom V continue to be heavily played until today, even though their time is nearly up
This alone is a fairly decent answer to cards with toughness of two or less, while also getting around the targeted aspect so that it can damage warded creatures
Chaos: Whenever you roll Chaos, choose target creature you control, that creature fights target creature an opponent controls, if your creature does not die, you become the monarch