Effect
[On Play] [When Digivolving] [On Deletion] Until your opponent's turn ends, 1 of your Digimon with [Mamemon] in its name gains <Blocker> (This Digimon can block in the blocker timing.) and their effects can't return it to hands or decks.
Inherited effect
<Blocker> (This Digimon can block in the blocker timing.)
Other digivolution requirements
[Digivolve] [Thundermon]: Cost 0
Rule
[Rule] Name: Treated as including [Mamemon].