Dimensional Alchemist [GLD3-EN015] Gold Rare Gladiator's Assault when your opponent activates a

when your opponent activates a Spell/Trap Card during your Battle Phase

and "Machina Defender" in your Graveyard

the Fusion Material Monsters that are listed on a Machine-Type Fusion Monster Card

or if your LP are lower than your opponent's

For each destroyed Spell Card

Dimensional Alchemist [GLD3-EN015] Gold Rare Gladiator's Assault when your opponent activates aSet: Gold Series 3 Card type: Effect Monster Rarity: Gold Rare Attack: 1300 Defense: 200 Once per turn, you can activate this effect to remove from play the top card of your Deck and gave this card 500 ATK until the End Phase. When this card is destroyed and sent from your side of the field to your Graveyard, you can select 1 of your removed from play monsters and return it to your hand.