Heroic Intervention (Surge Foil) [Doctor Who] Human Soldier Ally its controller adds an additional

its controller adds an additional one mana of that color

Set: Multiverse Legends Type: Legendary Creature — Phyrexian Elf Warrior Rarity: Mythic Cost: {2}{G}{U} Whenever a creature with power 2 or less enters the battlefield under your control

Braingeyser

Set: Theros Beyond Death Type: Creature — Satyr Rarity: Common Cost: {2}{R} When Irreverent Revelers enters the battlefield

Set: Kamigawa: Neon Dynasty Type: Legendary Creature — Dragon Spirit Rarity: Mythic Cost: {2}{R}{R} Flying

Heroic Intervention (Surge Foil) [Doctor Who] Human Soldier Ally its controller adds an additionalSet: Doctor Who Type: Instant Rarity: Rare Cost: {1}{G} Permanents you control gain hexproof and indestructible until end of turn. "I've come a long way for you!" exclaimed the Sixth Doctor. "Naturally. Don't expect any thanks," replied the Second Doctor.