Alcheturrent Verdigris

1 Homunculus x 1+ non-Homunculus monsters
Once per turn, when a Spell/Trap Card, or monster effect, is activated that includes an effect that Special Summons a monster: You can negate the activation, and if you do, destroy that card, then if this card is in a Perfect Alchemy, this card gains 300 ATK until the end of this turn. If this card in a Perfect Alchemy is destroyed by battle or card effect and sent to the GY: You can Special Summon 1 "Alcheturrent" monster from your Deck, and if you do, add 1 "Alcheturrent" monster with a different name from the Summoned monster from your Deck to your hand. You can only use this effect of "Alcheturrent Verdigris" once per turn.