Underworld Cerberus can't be blocked except by three or more creatures.Cards in graveyards can't be the targets of spells or abilities.When Underworld Cerberus dies, exile it and each player returns all creature cards from their graveyard to their hand.
Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)Lifelink (Damage dealt by this creature also causes you to gain that much life.)Enchanted creature gets +1/+1 and has lifelink.
Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)Enchanted creature gets +1/+1 and has deathtouch.
When Mogis's Marauder enters, up to X target creatures each gain intimidate and haste until end of turn, where X is your devotion to black. (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it. Each in the mana costs of permanents you control counts toward your devotion to black.)
Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)Flying, first strikeEnchanted creature gets +4/+4 and has flying and first strike.
This spell costs less to cast for each creature card in your graveyard.: Monstrosity 5. This ability costs less to activate for each creature card in your graveyard. (If this creature isn't monstrous, put five +1/+1 counters on it and it becomes monstrous.)