Yasmin Khan (Surge Foil) [Doctor Who] Elf Warrior Ally you may cast target instant

you may cast target instant or sorcery card from your graveyard without paying its mana cost

000 Type: Enchantment Rarity: Rare Cost: {5}{R} Whenever a creature enters the battlefield under your control

Set: The Lost Caverns of Ixalan Promos Type: Legendary Creature — Human Faerie Scout Rarity: Rare Cost: {1}{W} Whenever Kellan

But he marches on alone

Yasmin Khan (Surge Foil) [Doctor Who] Elf Warrior Ally you may cast target instantSet: Doctor Who Type: Legendary Creature Human Detective Rarity: Rare Cost: {3}{R} T: Exile the top card of your library. Until your next end step, you may play it. Doctor's companion (You can have two commanders if the other is the Doctor.) "We're going to find her and we're going to rescue her. She's done it for us enough timesnow it's our turn."