MTG Salvation

Hopefully someone was keeping him in check if he tried to use cards like Arc Mage, Deepglow Skate, or Inferno Titan to steal permanents using Dack Fayden's emblem since that only works with casted spells.

The ultimate is near game ending if you can get it off. Especially on the same turn you play him. Then with cards like Sea Kings' Blessing/Dwarven Song, Gigadrowse, Gridlock or Clockspinning you can basically steal everything. Those are pretty terrible cards on their own though, so you'd have to be building the deck around getting Dack Fayden's ultimate off which would classify the deck as a mediocre combo deck. Based on the meta, this might work for some and not so well for others.