How to Pilot Sultai Spelldancer in Magic: The Gathering Arena

To pilot Sultai Spelldancer in Magic: The Gathering Arena, establish an unblockable threat with Mercurial Spelldancer, build oil counters using low-cost noncreature spells, and remove those counters on combat damage to duplicate your high-impact instants and sorceries.

The Core Engine: Mercurial Spelldancer and Tyvar

Mercurial Spelldancer is a two-mana (1U) 2/1 Phyrexian Wizard that cannot be blocked. Each noncreature spell you cast—including instants, sorceries, artifacts, and planeswalkers—adds an oil counter to it. When the creature deals combat damage to an opponent, you may remove two oil counters. Doing so triggers a delayed effect that copies the next instant or sorcery spell you cast that turn.

In this Sultai shell, three colors divide the work:

Blue provides unblockable pressure, countermagic, and cheap card selection.
Black delivers targeted removal, sacrifice edicts, and heavy card advantage.
Green supplies flexible permanent interaction and planeswalker utility.

Tyvar, Jubilant Brawler serves as the primary support piece for this engine. His static ability allows your creatures to activate abilities as though they had haste, while his -2 loyalty ability returns a creature with mana value two or less directly from your graveyard to the battlefield. This recursion bypasses early enemy removal, returning Mercurial Spelldancer directly to the board without requiring additional mana.

Sequencing Spells and Managing Oil Counters

Because Mercurial Spelldancer requires two oil counters to trigger its spell-copy ability upon dealing combat damage, plan your cast order carefully around combat:

Check your oil count before attacks. If the creature has zero or one counter, cast an inexpensive spell like Consider or Cut Down during your pre-combat main phase to reach the two-counter threshold.
Attack to trigger the ability. Deal combat damage to your opponent and choose to remove two oil counters when prompted.
Cast your high-impact spell in Main Phase 2. The copy effect remains dormant until you cast an instant or sorcery later in the turn. Preserving your mana until your second main phase allows you to duplicate heavier interaction based on the current board state.

Spell Name	Mana Cost	Card Type	Primary Role	Oil Generation Window
Consider	U	Instant	Deck filtering and instant oil generation	Pre-combat or opponent's end step
Cut Down	B	Instant	Early creature removal	Pre-combat setup or post-combat trade
Go for the Throat	1B	Instant	Targeted creature removal	Post-combat duplication
Sheoldred's Edict	1B	Instant	Untargeted creature or planeswalker answer	Post-combat duplication
Tear Asunder	1G (Kicker 1B)	Instant	Artifact, enchantment, or permanent exile	Post-combat duplication

Primary Duplication Targets

Duplicating black removal spells turns one-for-one trades into board-clearing swings. When you cast Go for the Throat or Cut Down after removing two oil counters, the copy goes on the stack immediately, allowing you to select a different target for the duplicate.

Sheoldred's Edict: Duplicating this spell forces the opponent to sacrifice two distinct threats across the chosen categories (such as creature or planeswalker), bypassing ward costs and indestructible shields entirely.
Tear Asunder: If you pay the kicker cost (1B) when casting Tear Asunder with an active duplicate trigger, the copy retains the kicked status. This allows you to exile two nonland permanents for just three mana.
Invoke Despair: When your build includes heavy sorceries like Invoke Despair, copying the spell forces multiple sacrifices, drains opposing life totals, and refills your hand in a single turn.

Protecting the Creature

With only one toughness, Mercurial Spelldancer is vulnerable to cheap burn spells like Play with Fire and common black removal like Cut Down.

Avoid blind turn-two deployments. Do not run the creature into open enemy mana on turn two unless you have a second copy or Tyvar ready in hand. Delay casting it until turn three or four when you can either hold up protection or cast a follow-up noncreature spell immediately.
Hold up single-mana defense. Keep mana open for Slip Out the Back to phase the creature out in response to sweepers or targeted removal, which returns it with an additional +1/+1 counter and an oil counter.
Leverage tax counterspells. Use Spell Pierce or Make Disappear to protect your board when opponents attempt to disrupt your combat sequence.

Matchup Tactics

Against aggressive decks: Fast red or white creature decks require immediate defense. Do not hoard removal spells waiting for a duplicate trigger; cast Cut Down and Go for the Throat on sight to preserve your life total. Mercurial Spelldancer can serve as an emergency blocker if needed, especially when Tyvar is available to resurrect it later.
Against control and midrange mirrors: Shift into an attrition game plan. Avoid running multiple key threats into sweepers like Sunfall or Depopulate. Instead, let a single unblockable Spelldancer apply steady pressure while you duplicate card draw and edicts to exhaust the opponent's countermagic and removal.