Metatromon

Effect: ＜Blocker＞[On Play] [When Digivolving] [When Attacking] [Once Per Turn] ＜De-Digivolve 2＞ 1 of your opponent's Digimon. Then, 1 of their Digimon or Tamers can't digivolve until their turn ends.[End of Your Turn] [Once Per Turn] 1 of your other Digimon may digivolve into a green Digimon card with [Maquinamon] in its text in the hand without paying the cost.

Inherited Effect: [All Turns] [Once Per Turn] When effects add to this Digimon's digivolution cards, delete 1 of your opponent's Digimon with the lowest play cost.