Siren's Call [Limited Edition Alpha] Junior Super Series its controller adds an additional

its controller adds an additional one mana of that color

Set: Limited Edition Alpha Type: Creature — Orc Warrior Uncommon Cost: {1}{R}{R} {T}: Orcish Artillery deals 2 damage to any target and 3 damage to you

Set: Portal Type: Creature — Elf Scout Rare Cost: {2}{G} When Wood Elves enters the battlefield

"For my confession they burned me with fire And found that I was for endurance made

Siren's Call [Limited Edition Alpha] Junior Super Series its controller adds an additionalSet: Limited Edition Alpha Type: Instant Uncommon Cost: {U} Cast this spell only during an opponent's turn, before attackers are declared. Creatures the active player controls attack this turn if able. At the beginning of the next end step, destroy all non Wall creatures that player controls that didn't attack this turn. Ignore this effect for each creature the player didn't control continuously since the beginning of the turn.