Gussari @Ignister (MP21-EN092) [2021 Tin of Ancient Battles]

When a Link Monster is destroyed by battle: You can Special Summon this card from your hand. When your Link Monster destroys an opponent's monster by battle: You can inflict damage to your opponent equal to that destroyed monster's original ATK. When an attack is declared involving a Link Monster you control and an opponent's monster: You can banish this card from your GY; the ATK's of those monsters become 3000. You can only use each effect of "Gussari @Ignister" once per turn.