Threatening Roar [CP07-EN003] Super Rare Slug's Army and Mega Mewtwo Y

and Mega Mewtwo Y

you can discard 1 Zombie-Type monster to the Graveyard to select 1 Zombie-Type monster in your Graveyard with a Level less than the discarded Zombie-Type monster's

Set: Duelist Alliance Card type: Synchro/Effect Monster Rarity: Secret Rare Attack: 2300 Defense: 2600 1 Tuner + 1 or more non-Tuner Wyrm-Type monsters When this card is Synchro Summoned: You can target cards on the field

CLASSIC COLL - BASE SET

or if this card in your possession is destroyed by an opponent's card effect and sent to your Graveyard: You can Special Summon 1 "Gaia The Fierce Knight" monster from your hand

Threatening Roar [CP07-EN003] Super Rare Slug's Army and Mega Mewtwo YSet: Champion Pack 7 Card type: Normal Trap Rarity: Super Rare Your opponent cannot declare an attack this turn.