Tamiyo, the Moon Sage (396) [Secret Lair Drop Series] Mystery Once per turn (Quick Effect):

Once per turn (Quick Effect): You can target 1 Attack Position monster

This card gains 300 ATK for each "Elemental HERO" card in your Graveyard

Does 30 damage plus 20 more damage for each W Energy attached to Dark Blastoise but not used to pay for this attack

Entei and Energy cards attached to it aren't affected by effects from Trainer cards other than Trainer cards other than Stadium cards

Tamiyo, the Moon Sage (396) [Secret Lair Drop Series] Mystery Once per turn (Quick Effect):Rarity: M #: 396 Card Type: Planeswalker Tamiyo Description: [+1]: Tap target permanent. It doesn't untap during its controller's next untap step. [ 2]: Draw a card for each tapped creature target player controls. [ 8]: You get an emblem with "You have no maximum hand size" and "Whenever a card is put into your graveyard from anywhere, you may return it to your hand."