Sharding SphinxHow it works & interactions with other cards

What it Does

Sharding Sphinx is a 4/4 artifact creature with flying that features a triggered ability centered on combat damage. Whenever an artifact creature you control—including the Sphinx itself—deals combat damage to a player, you may create a 1/1 blue Thopter artifact creature token with flying. Since these tokens are themselves artifact creatures, they can trigger the Sphinx's ability in subsequent turns, leading to exponential growth of your Thopter army.

Step-by-Step Resolution

First, you must reach the combat damage step with at least one artifact creature unblocked. When that creature deals damage to a player, Sharding Sphinx's ability triggers. If multiple artifact creatures deal damage simultaneously, the ability triggers once for each creature. These triggers are placed on the stack; as each one resolves, you choose whether to create a 1/1 blue Thopter token. Note that the tokens enter the battlefield after damage has been dealt, so they cannot attack during that same combat phase unless you have an additional combat step.

Common Mistakes

A frequent point of confusion involves the nature of colored artifacts. Sharding Sphinx and its Thopter tokens are blue, but they are still artifacts. They are affected by anything that targets artifacts and anything that targets blue permanents. Additionally, remember that the ability only triggers on combat damage dealt to a player; dealing damage to a planeswalker or a creature in combat will not generate any tokens.

When to Play It

Sharding Sphinx is best utilized in 'Artifact Aggro' decks where you have multiple low-cost artifact creatures ready to attack. Because it counts itself, you can cast it as a finisher even if your board is empty, provided you can safely attack with a 4/4 flyer on the following turn. It is particularly effective against opponents who lack flying blockers, as the Thopter generation will quickly become unstoppable.

Interaction examples

Self-Triggering Power

Thopter

If Sharding Sphinx attacks and deals 4 combat damage to a player, its own ability triggers. You may then create one 1/1 blue Thopter artifact creature token with flying. Even though it dealt 4 damage, you only get one token because the trigger is per creature, not per point of damage.

Scaling the Swarm

Psychosis Crawler

Psychosis Crawler is an artifact creature. If both Sharding Sphinx and Psychosis Crawler deal combat damage to an opponent during the same combat step, Sharding Sphinx's ability triggers twice. You can resolve these triggers to create two Thopter tokens.

Non-Artifact Interactions

Hullbreaker Horror

If you control both Sharding Sphinx and Hullbreaker Horror, and both deal combat damage to a player, you will only receive one Thopter token. This is because Hullbreaker Horror is a Creature, but not an Artifact Creature, so it does not meet the requirements for the Sphinx's trigger.