yugioh duel academy card packs Yu-Gi-Oh! Speed GX: Duel Box!, SGX1 Originally released October 2011. Speed Duel GX: Duel Academy

It must be Special Summoned with "The Fang of Critias" by using the original "Mirror Force" as Fusion Material and destroys all opposing cards whenever a monster on its side of the Field (either "Mirror Force Dragon" itself or another one) is attacked by an opponent's monster or targeted by an opponent's card effect.

Pair it with other Grass types like any of the Exeggutors, or Rare Candy sets like Memory Light Decidueye EX, and maybe even Venusaur EX

It comes down early thanks to its shift ability, letting you play it for six ink instead of its usual eight

Nethroi, Apex of Death I read that mutate trigger and all I think is splat. Thats a lot of graveyard recursion