portal cards mtg Magic The Gathering Single Card Rare Last Chance starting with you Magic The Gathering PORTAL LAST

From here, you have lots of good options to draw upon from the Minotaur card pool

I came up with a mechanic in my sleep

In this case, the spell side provides an infinite-hand-size emblem while drawing you lots of cards, and the Sea Gate, Reborn side is an untapped mana source if needed early on

It's similar to many other cards with this same structure, but the tokens it creates accelerate you, and they're self-sacrificing if you just need more triggers for your Zulaport Cutthroat or what have you

Depending on your deck, you might also want to look at Clever Concealment, Flawless Maneuver and Cosmic Intervention the latter of which is a lot of fun with fetchlands and mass land destruction, or board wipes when you run a lot of strong EtB effects