Cumulative upkeep—Put a -1/-1 counter on Aboroth. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.

When Anarchist enters the battlefield, you may return target sorcery card from your graveyard to your hand.

Sacrifice Blood Pet: Add .

Trample
, Sacrifice an artifact: Bosh, Iron Golem deals damage equal to the sacrificed artifact's converted mana cost to any target.

When Brutal Nightstalker enters the battlefield, you may have target opponent discard a card.

Prevent all damage that would be dealt to creatures.

, : Bullwhip deals 1 damage to target creature. That creature attacks this turn if able.

: Reveal the top card of your library. If it's a creature card, put it onto the battlefield. Otherwise, put it into your graveyard.

Trample
: Regenerate Carnassid.

Whenever you cast a spell, you gain 1 life.

, Sacrifice Darigaaz's Attendant: Add .

Kicker (You may pay an additional as you cast this spell.)
Flying
When Desolation Angel enters the battlefield, destroy all lands you control. If it was kicked, destroy all lands instead.

Gemstone Mine enters the battlefield with three mining counters on it.
, Remove a mining counter from Gemstone Mine: Add one mana of any color. If there are no mining counters on Gemstone Mine, sacrifice it.

At the beginning of your upkeep, you gain 1 life for each card in target opponent's hand.
: Tap target creature. Activate this ability only if Gerrard Capashen is attacking.

First strike
: Destroy target artifact if its converted mana cost is equal to the amount of unspent mana you have.

, , Discard two cards: Target player discards X cards at random.

As an additional cost to cast this spell, pay X life.
Target creature gets +X/+0 until end of turn.

When Hidden Horror enters the battlefield, sacrifice it unless you discard a creature card.

, : Choose target opponent who had at least two fewer creature cards in their graveyard than you did as you activated this ability. Destroy target nonblack creature that player controls.