Slap it on your team and your artifact creatures gain lifelink and come back at end of turn when they die, so swinging into open blockers stops being scary
You can also pay one extra mana when casting them to turn a land into an Island as long as Tide Shaper stays on the battlefield
Then you would steal the scariest threat on the table or you could take your opponent's commander, if their deck relies on it heavily, effectively neutering them until they can remove it and recast the commander
Thats a pretty high ceiling, but a dismally low floor
Three mana for a Disenchant isn't great, but I love drawing cards
Shadow Summoning and Denethor, Ruling Steward I decided to pair Shadow Summoning and Denethor, Ruling Steward because I couldnt pick a favorite