Viscera Seer

Sacrifice a creature: Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Bartolomé del Presidio

Sacrifice another creature or artifact: Put a +1/+1 counter on Bartolomé del Presidio.

Deathtouch
Whenever another creature you control enters, you gain 1 life.
Whenever another creature you control dies, each opponent loses 1 life.

Flying
Sacrifice this creature: Creatures you control gain indestructible until end of turn.

Exile target creature you control, then return that card to the battlefield under your control.

Whenever another creature enters, untap this creature.

Whenever another creature you control enters, each opponent loses 1 life.

Enchant creature
Enchanted creature has "{T}: Create a 1/1 green Elf Warrior creature token."