Lucky Stadium - 100/105 - Neo Destiny Quality:NM Your opponent now puts 3

Your opponent now puts 3 damage counters on it instead of 1 after each player's turn (even if it was already Poisoned)

If the second coin is heads

this Pokémon takes 20 less damage from attacks (after applying Weakness and Resistance)

the Attacking Pokémon is Knocked Out

The Pokémon TCG: Scarlet & Violet Collection - 151 - Alakazam Ex includes:

Lucky Stadium - 100/105 - Neo Destiny Quality:NM Your opponent now puts 3Card Type: Trainer Stage: Stadium Rules: This card stays in play when you play it. Discard this card if another Stadium card comes into play., Once during each player's turn (before attacking), that player may flip a coin. If heads, that player draws a card.