In the Trenches [The Brothers' War Prerelease Promos] Phyrexian Rat its controller adds an additional

its controller adds an additional one mana of that color

” —Bilbo's song

Set: The Brothers' War Retro Artifacts Type: Artifact Rarity: Uncommon Cost: {1} {T}

it gains critical 4

put a +1/+1 counter on enchanted creature

In the Trenches [The Brothers' War Prerelease Promos] Phyrexian Rat its controller adds an additionalSet: The Brothers' War Prerelease Promos Type: Enchantment Rarity: Mythic Cost: {1}{W}{W} Creatures you control get +1 +1. {5}{W}: Exile target nonland permanent you don't control until In the Trenches leaves the battlefield. Activate only as a sorcery and only once. The battlefield became so pockmarked with craters and trenches that casualties were regularly attributed to "fell in a hole."