mtg cards like elixir of immortality Graveyard Shovel (foil) - Innistrad Shuffle Elixir of Immortality and your graveyard into your library. DDR#451 - Elixir of Immortality

Mindswipe on their turn, then Subterranean Tremors on yours will drill them for a lot

You can craft combos that you'd never be able to pull off in a mono-blue deck, but at that point all you've done is sculpted your own 2-color combo that you could've built into an actual 2-color deck anyway

Lots of characters you probably can't challenge with a large amount of Evasives from Ruby and things you don't really want to challenge in Emerald's toolkit

Ursula, Deceiver of All Into the Inklands, Enchanted ($350) The third set to be released for Lorcana, Into the Inklands, brought an exciting new element to the game: Location cards

Combined with free burn damage from Creeping Chill, this is generally enough to end games quickly

In fact, I find the design to be incredibly fun and unique