Savageborn Hydra [Double Masters] Cat Snake Set: Maximum Gold Card type:

Set: Maximum Gold Card type: Effect Monster Rarity: Rare Attack: 1600 Defense: 1200 This card is unaffected by the effects of "Hole" Normal Trap Cards

But where is the source

its Level becomes double its original Level until the end of this turn (even if this card leaves the field)

Set: Portal Three Kingdoms Type: Legendary Creature — Human Advisor Rarity: Rare Cost: {1}{B}{B} {T}: Target creature you control gets +2/+0 until end of turn

Savageborn Hydra [Double Masters] Cat Snake Set: Maximum Gold Card type:Set: Double Masters Type: Creature Hydra Rarity: Rare Cost: {X}{R}{G} Double strike Savageborn Hydra enters the battlefield with X +1 +1 counters on it. {1}{R G}: Put a +1 +1 counter on Savageborn Hydra. Activate only as a sorcery.