War Elemental [Mirrodin] Amonkhet Prerelease Promos Set: Limited Edition Beta Type:

Set: Limited Edition Beta Type: Instant Common Cost: {G} Target creature gets +3/+3 until end of turn

You may spend mana as though it were mana of any type to cast creature spells

Set: Beatdown Box Set Type: Sorcery Common Cost: {X}{R} This spell costs {1} more to cast for each target beyond the first

Set: Planechase 2012 Type: Creature — Demon Ninja Rare Cost: {3}{U}{U}{B}{B} Ninjutsu {4}{U}{B} ({4}{U}{B}

It's found in the silence that follows

War Elemental [Mirrodin] Amonkhet Prerelease Promos Set: Limited Edition Beta Type:Set: Mirrodin Type: Creature Elemental Rare Cost: {R}{R}{R} When War Elemental enters the battlefield, sacrifice it unless an opponent was dealt damage this turn. Whenever an opponent is dealt damage, put that many +1 +1 counters on War Elemental.