Sisay offers flexibility in deck building with legend permanent tutoring and power scaling
It was banned during the days of Urza, Highlord Artificer being at the top of the format but is now looking to reclaim its position back on top
Instead they are banished
Set completion particularly benefits players focusing on Standard formats
This alone would make the card excellent, but the corrupted upside, which turns it into an unconditional exile effect once your opponent has three poison counters, pushes things over the top, making Anoint with Affliction an auto-include in poison-based decks, and a serious consideration in any deck playing Swamps
Part of the newly released MTG Assassin's Creed set, non-foil copies of this legendary assassin were trading for $2.70 on launch day - they're now up to $15.50