It lets you look for solutions to the opponents threats, as well as find your own key cards to win the game
Aside from Marchesa's ability to steal creatures, the deck thrives on using other peoples' stuff against them
I had enough to swing 23 damage with my biggest creature getting blocked, so I swung lethal on Marchesa and passed the turn
Captain America, First Avenger comes with two abilities - a Catch ability that allows the player to attach a target Equipment to Captain America and a Throw ability that Unattaches that Equipment and deals out damage equal to its mana cost
8 Olaf, Friendly Snowman He Loves Warm Hugs The fun and silly sidekick of Frozen has an Amethyst card that may not look like a lot on the surface, but is a very helpful one to have in the early game
Ezuri, Stalker of Spheres is a strong roleplayer in Proliferate decks, and could make for a fun Commander