Yorion, Sky Nomad | Illustration by Steven Belledin Simple enough, ETB creatures are those that have a when this creature enters the battlefield triggered ability
The archetype's tactics focus on Life Point manipulation, Deck searching, and restrictions on Fiend-type Special Summons, forming a resource loop system in conjunction with search cards like "Secret Password"
During the events of Planar Chaos , Windgrace attempted to seal the time rift in Urborg located where the Rathi Stronghold had overlaid to prevent a mass of Phyrexians from pouring in
Recoil Obviously Cryptic Command comes in top, it is the most powerful and playable card on the list by a good chunk and likely would remain so even if you always had to chose bounce as one of the options
You can only use each effect of "Aussa the Earth Charmer, Immovable" once per turn