Weve only seen one Otter so far, in Bria, Riptide Rogue, but already its clear that the creature type will care about casting noncreature spells
There have been some really amazing cards printed over the years.
When a Siege is defeated, it is exiled, and its owner gets to play the reverse side (which could be a Creature, Artifact, or some other MTG card type) for free at Instant speed.
I have dug myself out of a lot of losing situations by suddenly assessing my creatures and artifacts to the point of sacrificing my okay to great cards in an effort to thin an opponents ranks all the way up to the utility creatures keeping them alive
It's also easy to find ways to recur the Seal using cards like Sun Titan
Table of Contents show What Are Zombie Commanders in MTG