Helm of the Ghastlord
{3}{U/B}
Enchantment -- Aura
Enchant creature
As long as enchanted creature is blue, it gets +1/+1 and has "Whenever ~this~ deals damage to an opponent, draw a card."
As long as enchanted creature is black, it gets +1/+1 and has "Whenever ~this~ deals damage to an opponent, that player discards a card."
Scourge of the Nobilis
{2}{R/W}
Enchantment -- Aura
Enchant creature
As long as enchanted creature is red, it gets +1/+1 and has "{r/w}: ~this~ gets +1/+0 until end of turn."
As long as enchanted creature is white, it gets +1/+1 and has lifelink. (Damage dealt by the creature also causes its controller to gain that much life.)