MTG Salvation

When Boggart Harbinger enters the battlefield, you may search your library for a Goblin card, reveal it, then shuffle your library and put that card on top of it.

When Elvish Harbinger enters the battlefield, you may search your library for an Elf card, reveal it, then shuffle and put that card on top.

T: Add one mana of any color.

When Elvish Harbinger enters the battlefield, you may search your library for an Elf card, reveal it, then shuffle your library and put that card on top of it.

T: Add one mana of any color.

When Elvish Harbinger enters the battlefield, you may search your library for an Elf card, reveal it, then shuffle your library and put that card on top of it.

T: Add one mana of any color.

When Elvish Harbinger enters the battlefield, you may search your library for an Elf card, reveal it, then shuffle your library and put that card on top of it.

T: Add one mana of any color.

Flash

Flying

When Faerie Harbinger enters the battlefield, you may search your library for a Faerie card, reveal it, then shuffle your library and put that card on top of it.

When Flamekin Harbinger enters the battlefield, you may search your library for an Elemental card, reveal it, then shuffle your library and put that card on top of it.

When Flamekin Harbinger enters the battlefield, you may search your library for an Elemental card, reveal it, then shuffle your library and put that card on top of it.

Hexproof from black

Whenever Garruk's Harbinger deals combat damage to a player or planeswalker, look at that many cards from the top of your library. You may reveal a creature or Garruk planeswalker card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Hexproof from black

Whenever Garruk's Harbinger deals combat damage to a player or planeswalker, look at that many cards from the top of your library. You may reveal a creature or Garruk planeswalker card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

When Giant Harbinger enters the battlefield, you may search your library for a Giant card, reveal it, then shuffle your library and put that card on top of it.

At the beginning of your upkeep, put a -1/-1 counter on each creature.

Protection from non-Spirit creatures

Soulshift 4 (When this creature dies, you may return target Spirit card with converted mana cost 4 or less from your graveyard to your hand.)

Flying

2R: Harbinger of the Hunt deals 1 damage to each creature without flying.

2G: Harbinger of the Hunt deals 1 damage to each other creature with flying.

You may cast Harbinger of the Tides as though it had flash if you pay 2 more to cast it. (You may cast it any time you could cast an instant.)

When Harbinger of the Tides enters the battlefield, you may return target tapped creature an opponent controls to its owner's hand.

You may cast Harbinger of the Tides as though it had flash if you pay 2 more to cast it. (You may cast it any time you could cast an instant.)

When Harbinger of the Tides enters the battlefield, you may return target tapped creature an opponent controls to its owner's hand.

You may cast Harbinger of the Tides as though it had flash if you pay 2 more to cast it.

When Harbinger of the Tides enters the battlefield, you may return target tapped creature an opponent controls to its owner’s hand.

You may cast Harbinger of the Tides as though it had flash if you pay 2 more to cast it. (You may cast it any time you could cast an instant.)

When Harbinger of the Tides enters the battlefield, you may return target tapped creature an opponent controls to its owner's hand.

T: Add U. Spend this mana only to foretell a card from your hand or to cast an instant or sorcery spell.

When Kithkin Harbinger enters the battlefield, you may search your library for a Kithkin card, reveal it, then shuffle your library and put that card on top of it.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

When Merrow Harbinger enters the battlefield, you may search your library for a Merfolk card, reveal it, then shuffle your library and put that card on top of it.

+2: You may discard a card. If you, draw a card.

-2: Exile target enchantment, tapped artifact, or tapped creature.

-8: Search your library for an artifact or creature card, put it onto the battlefield, then shuffle your library. It gains haste. Return it to your hand at the beginning of the next end step.

+2: You may discard a card. If you do, draw a card.

−2: Exile target enchantment, tapped artifact, or tapped creature.

−8: Search your library for an artifact or creature card, put it onto the battlefield, then shuffle. It gains haste. Return it to your hand at the beginning of the next end step.

+2: You may discard a card. If you do, draw a card.

−2: Exile target enchantment, tapped artifact, or tapped creature.

−8: Search your library for an artifact or creature card, put it onto the battlefield, then shuffle your library. It gains haste. Return it to your hand at the beginning of the next end step.

When Treefolk Harbinger enters the battlefield, you may search your library for a Treefolk or Forest card, reveal it, then shuffle your library and put that card on top of it.

Flying, lifelink

At the beginning of each end step, if you gained 4 or more life this turn, create a 4/4 white Angel creature token with flying and vigilance.

Flying, lifelink

At the beginning of each end step, if you gained 4 or more life this turn, create a 4/4 white Angel creature token with flying and vigilance.

Flying

When Yanling's Harbinger enters the battlefield, you may search your library and/or graveyard for a card named Mu Yanling, Celestial Wind, reveal it, and put it into your hand. If you search your library this way, shuffle it.