Red Theres a reason Cemetery Gatekeeper is limited to one trigger taxing each spell a player casts for two damage is too much for a two-mana beater
If you just read the card and dont look at the oracle text, you might think this will take out every opponents creatures
So, let's go over perhaps the most important part: finding your Prerelease
Im also a big fan of this card alongside cards such as Repercussion or Toralf, God of Fury, where it can easily become a secondary win condition in burn decks by sending tons of damage at your opponents if they overextend
Future Tactics games would ditch it to keep everything more in line with the main games
This card works great when youre playing a dual-color deck, and also, appropriately enough, when your Commander is Niv-Mizzet Reborn