1999 charmeleon pokemon card Classic - Base Set Stage 1/Uncommon #24 Regular LP Secret Rare Retreat cost Going through my collection, is

Its niche, but there are a number of multicolored ally commanders that like to play this card, like Avatar Aang, as well as more classic ones like General Tazri

This is especially true if youre playing a deck loaded up with creatures and other permanents with Enter the Battlefield abilities, as any targeted effect your opponent tries to use on your permanents is likely to let you rebuy an Enter the Battlefield

Invocation of Saint Traft

If you wanted to be especially tricksy, you could run white counterspells like Lapse of Certainty to catch people off guard

You can also use proliferate cards like Experimental Augury and Tezzeret's Gambit to stack experience even faster