Savageborn Hydra [Double Masters] Cat Snake its Level becomes double its

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

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

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

One look from this monster can turn an opponent to stone

But where is the source

Savageborn Hydra [Double Masters] Cat Snake its Level becomes double itsSet: 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.