Slumbering Dragon [Magic 2013] BT1-006 5 Card type: Digimon Rarity:

5 Card type: Digimon Rarity: Super Rare Digi type: Cyborg Play Cost: 12 Form: Mega Attribute: Virus Digivolve Cost: 4 Digivolve Cost Level: 5 ＜Piercing＞ (When this Digimon attacks and deletes an opponent's Digimon and survives the battle

but the copy included in this deck was mistakenly printed as a 2/3

but after that you run into diminishing returns

it gets +2/+0 and gains haste

there is an additional beginning phase after this phase

Slumbering Dragon [Magic 2013] BT1-006 5 Card type: Digimon Rarity:Set: Magic 2013 Type: Creature Dragon Rarity: Rare Cost: {R} Flying Slumbering Dragon can't attack or block unless it has five or more +1 +1 counters on it. Whenever a creature attacks you or a planeswalker you control, put a +1 +1 counter on Slumbering Dragon.