Skyshroud Sentinel [Nemesis] 254 Set: Core Set 2019 Type:

Set: Core Set 2019 Type: Enchantment Rarity: Mythic Cost: {7}{U}{U}{U} You may cast spells from your hand without paying their mana costs

you may mill two cards instead

When Hopeless Nightmare is put into a graveyard from the battlefield

Set: Black & White: Boundaries Crossed Type: Fighting Rarity: Holo Rare Retreat cost: Colorless

only experiments

Skyshroud Sentinel [Nemesis] 254 Set: Core Set 2019 Type:Set: Nemesis Type: Creature Elf Rarity: Common Cost: {2}{G} When Skyshroud Sentinel enters the battlefield, you may search your library for up to three cards named Skyshroud Sentinel, reveal them, put them into your hand, then shuffle.