Hammer Spark [ST2-13] [Starter Deck: Cocytus Blue] Mammal You can digivolve this card

You can digivolve this card into 1 level 6 green Digimon card among them without paying its memory cost

Set: Promotional Cards Card type: Digimon Rarity: Promotional Digi type: Unidentified Play Cost: 3 Form: Rookie Attribute: Unknown Digivolve Cost: 0 Digivolve Cost Level: 2 [Opponent's Turn] This Digimon gets +1000 DP

)[Your Turn] While this Digimon's digivolution cards include a Digimon card with [Hybrid] in its form or a red Tamer card

or [DexDoruGreymon]

Set: Great Legend Pre-Release Promos Card type: Digimon Rarity: Uncommon Digi type: Reptile Play Cost: 3 Form: Rookie Attribute: Virus Digivolve Cost: 0 Digivolve Cost Level: 2 [Your Turn] When this card is trashed due to activating this Digimon's ＜Digi-Burst＞

Hammer Spark [ST2-13] [Starter Deck: Cocytus Blue] Mammal You can digivolve this cardSet: Starter Deck: Cocytus Blue Card type: Option Rarity: Common Play Cost: 0 [Main] Gain 1 memory. [Security] Gain 2 memory.