Teklovossen [HER093] (Promo) Cold Foil SWSH284 When an Effect Monster's effect

When an Effect Monster's effect is activated

Set: Clash of Rebellions Card type: Normal Trap Rarity: Secret Rare When an opponent's monster declares an attack: Return all face-up Attack Position monsters your opponent controls to the hand

destroy all other monsters after damage calculation

but while this effect is applied

Teklovossen [HER093] (Promo) Cold Foil SWSH284 When an Effect Monster's effectSet: Promo Finish: Cold Foil Type: Hero Subtype: Young Rarity: Promo Class: Mechanologist Life: 20 Intellect: 4 You may play Evos from your banished zone. Once per Turn Instant (3 Resource): You may play your next Evo this turn as though it were an instant. When you do, draw a card.