Harmonize
| Harmonize | |
|---|---|
 | |
| Keyword Ability | |
| Type | Static |
| Introduced | Tarkir: Dragonstorm |
| Last used | Tarkir: Dragonstorm |
| Reminder Text |
Harmonize [cost] (You may cast this card from your graveyard by paying its harmonize cost. You may tap a creature you control to reduce that cost by  , where X is its power. Then exile this spell.) |
| Statistics |
11 cards  27.3%  27.3%  27.3%  9.1%  9.1% |
| Scryfall Search | |
| keyword:"Harmonize" | |
Harmonize is a keyword ability for instants and sorceries introduced in Tarkir: Dragonstorm, where it is tied to the Temur Frontier clan.[1]
Description
Harmonize allows you to cast a card from your graveyard by paying its harmonize cost rather than paying its mana cost. In addition, if you cast it this way, you may tap an untapped creature you control as an additional cost to cast that spell. If you do, the amount of generic mana you pay is reduced by that creature's power. For Tarkir: Dragonstom, all spells with Harmonize are sorceries and the only way to cast an instant with Harmonize via Songcrafter Mage's ability.
Harmonize is a twist on Flashback, where spells can be cast one additional time from the graveyard. Without any creatures to tap, there is no practical difference between the two mechanics.
Rules
From the glossary of the Comprehensive Rules (April 4, 2025—Tarkir: Dragonstorm)
- Harmonize
- A keyword ability that lets a player cast a card from their graveyard for a specific cost and lets them tap a creature they control to reduce that cost. See rule 702.180, “Harmonize.”
From the Comprehensive Rules (April 4, 2025—Tarkir: Dragonstorm)
- 702.180. Harmonize
- 702.180a Harmonize represents three static abilities that function while the spell with harmonize is on the stack. “Harmonize [cost]” means “You may cast this spell from your graveyard by paying [cost] and tapping up to one untapped creature you control rather than paying this spell’s mana cost,” “If you cast this spell using its harmonize ability, its total cost is reduced by an amount of generic mana equal to the tapped creature’s power,” and “If the harmonize cost was paid, exile this card instead of putting it anywhere else any time it would leave the stack.” Casting a spell using its harmonize ability follows the rules for paying alternative costs in rules 601.2b and 601.2f–h.
- 702.180b You choose which creature to tap as you choose to pay a spell’s harmonize cost (see rule 601.2b), and then tap that creature as you pay the total cost.
Rulings
- "Harmonize [cost]" means "You may cast this card from your graveyard by paying [cost] and tapping up to one untapped creature you control rather than paying the spell's mana cost," "If you cast this spell using its harmonize ability, its total cost is reduced by an amount of generic mana equal to the tapped creature's power," and "If the harmonize cost was paid, exile this card instead of putting it anywhere else any time it would leave the stack."[2]
- Tapping a creature won't reduce colored mana components of harmonize costs.
- You must still follow any timing restrictions and permissions, including those based on the card's type. For instance, you can cast a sorcery using harmonize only when you could normally cast a sorcery.
- To determine the total cost of a spell, start with the mana cost or alternative cost (such as a harmonize cost) you're paying, add any cost increases, then apply any cost reductions (such as the cost reduction from tapping a creature). The mana value of the spell is determined only by its mana cost, no matter what the total cost to cast the spell was.
- A spell cast using harmonize will always be exiled afterward, whether it resolves, is countered, or leaves the stack in some other way.
- You can cast a spell using harmonize even if it was somehow put into your graveyard without having been cast.
- If a card with harmonize is put into your graveyard during your turn, you can cast it if it's legal to do so before any other player can take any actions.
- You don't have to tap a creature if you don't want to (or can't), in which case you'll just pay the full harmonize cost.[1]
- You can't reduce the base cost of the spell by tapping a creature. This functionality is reserved for casting it by the Harmonize cost.
Example
Example
Roamer's Routine 
Sorcery
Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Harmonize 
(You may cast this card from your graveyard for its harmonize cost. You may tap a creature you control to reduce that cost by , where X is its power. Then exile this spell.)
Cards that grant harmonize
- Songcrafter Mage (target instant or sorcery in your graveyard)
See also
References
- ↑ a b Matt Tabak (March 18, 2025). "Tarkir: Dragonstorm Mechanics". magicthegathering.com. Wizards of the Coast.
- ↑ Jess Dunks & Eric Levine (March 27, 2025). "Tarkir: Dragonstorm Release Notes". magicthegathering.com. Wizards of the Coast.
