Diabolic Intent

As an additional cost to cast this spell, sacrifice a creature.
Search your library for a card, put that card into your hand, then shuffle.

Syphon Sliver

Sliver creatures you control have lifelink. (Damage dealt by a Sliver creature you control also causes you to gain that much life.)

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.

{T}: Add one mana of any color among legendary creatures and planeswalkers you control.

Slivers can't be blocked except by Slivers.

Search your library for an artifact or enchantment card, reveal it, then shuffle and put that card on top.