River Heralds' Boon

Cards similar to River Heralds' Boon:

Favored Enemy

Enchantment

As Favored Enemy enters, note the most prevalent creature type in an opponent's library.
When Favored Enemy enters, target creature you control fights up to one target creature you don't control.
Whenever a creature an opponent controls of the noted type dies, put a +1/+1 counter on target creature you control.

10 /10

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Invasion of Muraganda // Primordial Plasm

Battle — Siege // Creature — Ooze (0/0)

(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)
When Invasion of Muraganda enters, put a +1/+1 counter on target creature you control. Then that creature fights up to one target creature you don't control.

Primordial Plasm

At the beginning of combat on your turn, another target creature gets +2/+2 and loses all abilities until end of turn.

5.3 /10

$0.02

Obuun, Mul Daya Ancestor

Legendary Creature — Elf Spirit (3/3)

At the beginning of combat on your turn, up to one target land you control becomes an X/X Elemental creature with trample and haste until end of turn, where X is Obuun's power. It's still a land.
Landfall — Whenever a land you control enters, put a +1/+1 counter on target creature.

7.2 /10

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Struggle for Skemfar

Sorcery

Put a +1/+1 counter on target creature you control. Then that creature fights up to one target creature you don't control. (Each deals damage equal to its power to the other.)
Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

4.7 /10

$0.04

Ancient Animus

Instant

Put a +1/+1 counter on target creature you control if it's legendary. Then it fights target creature an opponent controls. (Each deals damage equal to its power to the other.)

8.7 /10

$0.05

Arbalest Engineers

Creature — Human Artificer (2/2)

When Arbalest Engineers enters, choose one —
• Arbalest Engineers deals 1 damage to any target.
• Put a +1/+1 counter on target creature. It gains trample and haste until end of turn.
• Create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

4 /10

$0.05

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