Hushbringer

Flying, lifelink
Creatures entering or dying don't cause abilities to trigger.

Blood Seeker

Whenever a creature an opponent controls enters, you may have that player lose 1 life.

Flash
Flying
Creatures entering don't cause abilities to trigger.

Hunted Phantasm can't be blocked.
When Hunted Phantasm enters, target opponent creates five 1/1 red Goblin creature tokens.

Flying, haste
When Hunted Dragon enters, target opponent creates three 2/2 white Knight creature tokens with first strike.

All creatures get -4/-4 until end of turn.

Choose one —
• All creatures get -1/-1 until end of turn.
• Destroy target enchantment.
• Regenerate each creature you control.

Whenever Blood Artist or another creature dies, target player loses 1 life and you gain 1 life.

Creatures entering don't cause abilities to trigger.

Whenever another creature enters, you gain 1 life.

When Hunted Troll enters, target opponent creates four 1/1 blue Faerie creature tokens with flying.
{G}: Regenerate Hunted Troll.

All creatures get -2/-2 until end of turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Target creature and all other creatures with the same name as that creature get -3/-3 until end of turn.

Flying, vigilance
Players can't untap more than one creature during their untap steps.

Famine deals 3 damage to each creature and each player.

Return target nonland permanent and all other permanents with the same name as that permanent to their owners' hands.