Ashen Ghoul

Innate Spellcaster {b}/{r}: Ashen Ghoul gains Undying/Ashen Ghoul deals 1 damage to target enemy unit (For each different type of land used to summon this creature, it has a bonus effect.)
If a creature is destroyed by a Black spell, summon a copy of Ashen Ghoul onto your battlefield.
If a creature is destroyed by a Red spell, grant Ashen Ghoul +1/+1.