Underground Mortuary (Promo Pack) [Murders at Karlov Manor Promos] Forest Plains if they were attacked this

if they were attacked this turn by an Assassin you controlled

Mogis isn't a creature

[Blocker] (After your opponent declares an attack

Set: The List Type: Sorcery Rarity: Rare Cost: {1}{W} Exile target creature you don't control

Set: Secret Lair Drop Series Type: Instant Rarity: Rare Cost: {U} Counter target activated or triggered ability

Underground Mortuary (Promo Pack) [Murders at Karlov Manor Promos] Forest Plains if they were attacked thisSet: Murders at Karlov Manor Promos Type: Land Swamp Forest Rarity: Rare ({T}: Add {B} or {G}.) Underground Mortuary enters the battlefield tapped. When Underground Mortuary enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)