I have made a list of the cards that I think do some of the most to enhance the game play in the cube by virtue of reducing luck based wins
Standardize While most of the time, these types of effects appear on Enchantments and permanently impact the game state while they remain on the battlefield, there are exceptions
Core ProwlerCore Prowler will wind up going to the graveyard more than once in a deck led by Whisper, and if we keep some of the artifact token makers in the deck for sacrifice fodder, Throne of GethThrone of Geth can get us to the promised land, too
Once a letter has been guessed, it can't be guessed again
Use these standard condition grades when assessing your cards: Mint (M): Perfect, no visible flaws under normal lighting
Flying, vigilance and trample are very aggro keywords, and when you look at the support this card receives in C21, you can start to see the bigger picture