David Attenborough

Indestructible, hexproof David Attenborough costs {x} less to cast, where {x} is the number of differently named lands and creatures you control. When David Attenborough enters the battlefield, search your library for 10 basic lands and/or 10 creatures and put them onto the battlefield tapped. Stop Climate Change - at the beginning of your upkeep, if you control 30 or more creatures, draw 5 cards, gain 5 life and put 2 +1/+1 counters on each creature you control.