Landfall Whenever a land you control enters, you may put a +1/+1 counter on each Plant creature you control
For example, Emet-Selch can transform into the fearsome Hades, and Sephiroth into Safer Sephiroth
With cost reduction effects, it is incredibly easy to turn these cards into a form of mana ramp, while with the right combinations of cards, they can be used in several infinite combos
Elspeth, Storm Slayer Elspeth, Storm Slayer is one of the best Elspeths and it's easy to see why
Adaptive Automaton is a huge boon for these decks, giving their creatures a way to reliably grow in size
Despite its unique card back, Euroakus is technically playable in Commander, making it one of the rarest MTG cards that could theoretically hit the battlefield