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.)
Steel of the Godhead
{2}{W/U}
Enchantment -- Aura
Enchant creature
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.)
As long as enchanted creature is blue, it gets +1/+1 and can't be blocked.