Boros Fury-Shield [Ravnica: City of Guilds] Halfling Soldier target attacking historic creature gets

target attacking historic creature gets +1/+1 and gains indestructible until end of turn

Set: Phyrexia: All Will Be One Type: Legendary Planeswalker — Kaito Rarity: Rare Cost: {2}{U}{B} Whenever one or more creatures you control deal combat damage to a player

Set: Commander 2018 Tokens Type: Token Creature — Cat Rarity: Common Reverse Type: Token Creature — Soldier

What's the mana cost

Set: Prophecy Type: Instant Rarity: Common Cost: {R} Inflame deals 2 damage to each creature dealt damage this turn

Boros Fury-Shield [Ravnica: City of Guilds] Halfling Soldier target attacking historic creature getsSet: Ravnica: City of Guilds Type: Instant Rarity: Common Cost: {2}{W} Prevent all combat damage that would be dealt by target attacking or blocking creature this turn. If {R} was spent to cast this spell, Boros Fury Shield deals damage to that creature's controller equal to the creature's power.