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'''Join forces''' is an [[ability word]] introduced in ''[[Commander]]''.
{{Infobox ability
| name = Join Forces
| first = Commander (2011){{!}}Commander
| last = Commander (2011){{!}}Commander
| reminder = Starting with you, each player may pay any amount of mana. ...
| stats = {{stats|W=1|U=1|B=1|R=1|G=1}}
}}
'''''Join forces''''' is an [[ability word]] introduced in ''[[Commander (2011)|Commander]]''.  


Join forces allows multiple players to pay mana to increase the effectiveness of the same card. Starting with the controller of the card with Join forces, each player may pay any amount of mana. Then, an effect based on the total amount of mana paid by all players occurs. All join forces cards included in the set have symmetric effects that benefit all players equally.
Join forces allows multiple players to pay mana to increase the effectiveness of the same card. Starting with the controller of the card with Join forces, each player may pay any amount of mana. Then, an effect based on the total amount of mana paid by all players occurs. All join forces cards included in the set have [[symmetric effects]] that benefit all players equally.
 
==Rulings==
*The opportunity to pay mana happens when the join forces ability resolves. If the join forces ability is on a spell, and that spell is countered, none of that spell's effects will occur, so no player will have the opportunity to pay mana.
*Each player in turn order gets one opportunity to pay any amount of mana. Once all players have had this opportunity, the join forces ability continues resolving.
*The mana paid for the join forces ability of a spell doesn't change that spell's converted mana cost. The converted mana cost of <c>Alliance of Arms</c>, for example, is always 1.
*None of the join forces abilities have targets. Each player may pay mana, and each player will benefit from the four sorceries with a join forces ability.
*One creature (<c>Mana-Charged Dragon</c>) has a join forces triggered ability.
*Spells with join forces abilities ignore the spell's mana cost when determining the total effect. For example, the {{W}} spent to cast <c>Alliance of Arms</c> will not add 1 to the total mana paid for the join forces ability.
*Spells with join forces abilities will have the same effect for each player based on the total amount of mana paid for those abilities. It doesn't matter how much mana any individual player paid.


==Examples==
==Examples==
{{examples|text=''
{{examples|<c>Shared Trauma</c> {{B}}<br>Sorcery<br>''Join forces'' {{-}} Starting with you, each player may pay any amount of mana. Each player puts the top X cards of their library into their graveyard, where X is the total amount of mana paid this way.}}
*<c>Shared Trauma</c> - {{B}}<br>Sorcery<br>''Join forces'' {{-}} Starting with you, each player may pay any amount of mana. Each player puts the top X cards of his or her library into his or her graveyard, where X is the total amount of mana paid this way.<br>
}}


[[Category:Ability words]][[Category:Magic rules]]
{{Mechanics|ability}}

Latest revision as of 14:39, 28 June 2021

Join Forces
Ability Word
Introduced Commander
Last used Commander
Typical Text Join forces — Starting with you, each player may pay any amount of mana. ...
Statistics
5 cards
{W} 20% {U} 20% {B} 20% {R} 20% {G} 20%
Scryfall Search
keyword:"Join Forces"

Join forces is an ability word introduced in Commander.

Join forces allows multiple players to pay mana to increase the effectiveness of the same card. Starting with the controller of the card with Join forces, each player may pay any amount of mana. Then, an effect based on the total amount of mana paid by all players occurs. All join forces cards included in the set have symmetric effects that benefit all players equally.

Rulings

  • The opportunity to pay mana happens when the join forces ability resolves. If the join forces ability is on a spell, and that spell is countered, none of that spell's effects will occur, so no player will have the opportunity to pay mana.
  • Each player in turn order gets one opportunity to pay any amount of mana. Once all players have had this opportunity, the join forces ability continues resolving.
  • The mana paid for the join forces ability of a spell doesn't change that spell's converted mana cost. The converted mana cost of Alliance of Arms, for example, is always 1.
  • None of the join forces abilities have targets. Each player may pay mana, and each player will benefit from the four sorceries with a join forces ability.
  • One creature (Mana-Charged Dragon) has a join forces triggered ability.
  • Spells with join forces abilities ignore the spell's mana cost when determining the total effect. For example, the {W} spent to cast Alliance of Arms will not add 1 to the total mana paid for the join forces ability.
  • Spells with join forces abilities will have the same effect for each player based on the total amount of mana paid for those abilities. It doesn't matter how much mana any individual player paid.

Examples

Example

Shared Trauma {B}
Sorcery
Join forces — Starting with you, each player may pay any amount of mana. Each player puts the top X cards of their library into their graveyard, where X is the total amount of mana paid this way.