mtg 13 card The Number Thirteen WILL KILL YOU! you win the game. Magic The Gathering Duskmourn House

Thankfully, MTG players wont be disappointed with this one

Most instances of either gating condition are on activated abilities (most of which don't cost mana and therefore need a limiting condition), neatly solving the issue I'm about to mention, but consider this example: We're playing Innistrad Crimson Vow draft

When Ledev Champion isnt attacking, it can pump out its own lifelink soldiers

Note that there are no brakes here like once per turn or one class of spell like non-creatures

This means, with enough methods to get those double-triggers in your deck, your creatures will grow into terrifying threats very quickly