MScore: 9.5/10

The Skullspore Nexus

{6} {G} {G}

Legendary Artifactmythic

This spell costs {X} less to cast, where X is the greatest power among creatures you control.

Whenever one or more nontoken creatures you control die, create a green Fungus Dinosaur creature token with base power and toughness each equal to the total power of those creatures.

{2} , {T} : Double target creature's power until end of turn.

Illustrated by Mónica Robles Corzo · The Lost Caverns of Ixalan · #340

Rulings for The Skullspore Nexus

2023-11-10
The first step of casting a spell is to move it to the stack. If this causes the greatest power among creatures you control to change (for example, if you control a creature with "This creature's power is equal to the number of cards in your hand"), that new power will be used to determine the cost reduction.

2023-11-10
Once you determine the cost to cast The Skullspore Nexus, you may activate abilities to pay that cost. If the greatest power among creatures you control changes while activating mana abilities, the cost to cast The Skullspore Nexus remains what you previously determined.

2023-11-10
Use the power of the nontoken creatures that died as they last existed on the battlefield to determine the base power and toughness of the token created by the middle ability.

2023-11-10
To double a creature's power, that creature gets +X/+0, where X is that creature's power as The Skullspore Nexus's activated ability resolves.

Cards Similar to The Skullspore Nexus

This spell costs less to cast, where X is the greatest power among creatures you control.

: Add . You gain 2 life.

Whenever a nontoken creature you control enters, put a +1/+1 counter on it and draw a card.

9.9/10~$79

The Great Henge

Legendary Artifact

This spell costs less to cast, where X is the greatest power among creatures you control.

: Add . You gain 2 life.

Whenever a nontoken creature you control enters, put a +1/+1 counter on it and draw a card.

7.8/10$5.49

Nylea's Colossus

Enchantment Creature — Giant

6/6

Constellation — Whenever this creature or another enchantment you control enters, double target creature's power and toughness until end of turn.

7.8/10$5.49

Nylea's Colossus

Enchantment Creature — Giant

6/6

Constellation — Whenever this creature or another enchantment you control enters, double target creature's power and toughness until end of turn.

Mitotic Ultimus

Legendary Creature — Ooze Giant

8/8

This spell costs less to cast, where X is the greatest power among creatures you control.

Trample

When Mitotic Ultimus dies, conjure two cards named Mitotic Slime onto the battlefield.

Mitotic Ultimus

Legendary Creature — Ooze Giant

8/8

This spell costs less to cast, where X is the greatest power among creatures you control.

Trample

When Mitotic Ultimus dies, conjure two cards named Mitotic Slime onto the battlefield.

Reach

When this creature enters, distribute three +1/+1 counters among one, two, or three target creatures, then you gain life equal to the greatest toughness among creatures you control.

Reach

When this creature enters, distribute three +1/+1 counters among one, two, or three target creatures, then you gain life equal to the greatest toughness among creatures you control.