Paleozoic Leanchoilia [MP17-EN171] Common BT8-043 you can only target an

you can only target an Xyz Monster

Must be Special Summoned (from your hand) by controlling no cards

this card attack once again

halve the ATK of that monster you control until the end of this turn

The Pokémon TCG: Celebrations Collection—Dragapult Prime includes:

Paleozoic Leanchoilia [MP17-EN171] Common BT8-043 you can only target anSet: 2017 Mega Tins Mega Pack Card type: Normal Trap Rarity: Common Target 1 banished card; return it to the Graveyard. Once per Chain, when a Trap Card is activated while this card is in your Graveyard: Special Summon this card as a Normal Monster (Aqua Type WATER Level 2 ATK 1200 DEF 0). (This card is NOT treated as a Trap Card.) If Summoned this way, this card is unaffected by monster effects, also banish it when it leaves the field.