cleaning mtg cards Magic can be a dirty game... let's clean some of it up destroy that land unless any player pays 1 life. How to Clean Your Magic

In the same breath, a deck that has Selvala, Zaxara and Faeburrow Elder should be careful with effects like Freed from the Real or Pemmins Aura

Clock of Omens

This is another enters the battlefield trigger, not a cast trigger - which means it works if youre flickering your enchantments, too

Who / What / Where / When / Why 5W is like a lot of flexible cards in that it isnt really efficient at doing anything specifically because each mode costs one more mana than the general cost (1R is the general cost of a Shatter effect, but on What it costs 2R) aside from the Stream of Life mode on Who, which is pretty suboptimal