mtg heart of the cards Defense put those cards onto the battlefield MTGNexus - Heart of the

View store information JOURNEY TO THE CENTER OF IXALANExplore the cavernous depths beneath Ixalan in a race to the hidden core

It's notoriously difficult to track sometimes, but it can also just end the game immediately and prevent having to do too much math

Avatar Kuruk even lets you take an extra turn if you have enough mana, tokens, and artifacts

Then it would be Top 5 material

They do come with a very reasonable penalty in both tempo and vulnerability however as we are finding with Chrome Mox and Vampiric Tutor, no drawback is as bad as being mana screwed

Same with Throat Slitter, although the cheap activation cost makes using it attractive