Celestial Prism [Alpha Edition] Sarkhan its controller adds an additional

its controller adds an additional one mana of that color

Set: Portal Three Kingdoms Type: Sorcery Rarity: Rare Cost: {1}{G}{G} All creatures able to block target creature this turn do so

Set: Mirrodin Type: Creature — Elemental Rarity: Rare Cost: {3}{U}{U} {U}: Quicksilver Elemental gains all activated abilities of target creature until end of turn

When Argoth suffers

Set: Onslaught Type: Sorcery Rarity: Rare Cost: {3}{B}{B} Each player chooses a creature type

Celestial Prism [Alpha Edition] Sarkhan its controller adds an additionalSet: Alpha Edition Type: Artifact Rarity: Uncommon Cost: {3} {2}, {T}: Add one mana of any color.