mtg isshin commander deck Let's Build a High-Powered Isshin, Two Heavens as One MTG Commander Deck EDH Deck

Grim Tutor is one of the most powerful tutor cards in Magic because of its versatility

By the time my Ritual resolved it only gives me the three mana instead of five unless I find another way to put cards in my graveyard before then

Theres no new card types or sub-types

Then it has haste for the turn

Trelasarra comes in on turn 2 every time and immediately gets to work

Along similar lines, the card is definitely worse in sideboarded games where most decks are more likely to draw that key piece of interaction, and the more copies of Unsubstantiate you play, the harder it is to sideboard them out when you decide theyre bad against your opponents post-sideboard configuration