Even by itself, a 2/2 double striker for 3 mana is a good rate on return, so any deck can play this
Colorless The Ooze | 2 Colorless Mana Legendary Artifact Whenever a creature you control with a +1/+1 counter on it leaves the battlefield, create a Mutagen token for each +1/+1 counter on it
Yes, obvious at six mana youre not trying to stop your opponent from casting spells by destroying their Mountain, but, especially because its an instant, you can probably find a window to use it to kill Azcanta, the Sunken Ruin and avoid losing a game
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I think this list should play alright at mid power tables and might occasionally sneak out a win at higher power tables, but it's probably lacking some key cards
So let's take a look at some of the most efficient spells at doing that, shall we