Heart Sliver Combos
Bolas's Citadel + Mortuary + Darkheart Sliver
Prize Pig + Gravecrawler + Darkheart Sliver
Combo result
Infinite ETB. Infinite LTB. Infinite death triggers. Infinite sacrifice triggers. Infinite lifegain. Infinite lifegain triggers. Infinite storm count. Infinite landfall triggers.
Prerequisites
All permanents on the battlefield. You control at least one additional Zombie. Prize Pig does not have summoning sickness.
Sliver Gravemother + Intruder Alarm + Heart Sliver
Combo result
Infinite creature tokens with haste. Infinite colored mana. Infinite ETB. Infinite LTB. Infinite death triggers. Infinite sacrifice triggers. Infinite storm count. Infinite commander casts. Infinite untap of all creatures.
Prerequisites
Sliver Gravemother in the command zone. All other permanents on the battlefield. You have at least three opponents. At most plus two mana of any two different colors available, plus enough mana to pay for commander tax, if applicable.