Market price
- Near Mint
- $5.38
- Lightly Played
- $5.04
- Moderately Played
- $4.91
- Near Mint
- $5.38
- Lightly Played
- $5.04
- Moderately Played
- $4.91
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Robobrain War Mind's power is equal to the number of cards in your hand.
When this creature enters, you get an amount of 
equal to the number of artifact creatures you control.
Whenever this creature attacks, you may pay . If you do, draw a card.
*/5
Illustrated by Leonardo Borazio
Rulings (11)
Mar 8, 2024
Energy counters are a kind of counter that a player may have. They're not associated with any specific permanents.
Mar 8, 2024
Energy counters aren't mana. They don't go away as steps, phases, and turns end, and effects that add mana "of any type" can't give you energy counters.
Mar 8, 2024
If a spell or ability with one or more targets states that you "may pay" some amount of , and each permanent that it targets has become an illegal target, the spell or ability won't resolve. You can't pay any even if you want to.
Mar 8, 2024
If an effect says you get one or more , you get that many energy counters. To pay one or more , you lose that many energy counters. You can't pay more energy counters than you have. Any effects that interact with counters a player gets, has, or loses can interact with energy counters.
Mar 8, 2024
Keep track of how many energy counters each player has. Potential ways to track this include writing them down on paper or using dice, but any method that is clear and mutually agreeable is fine. (At higher levels of tournament play, dice may not be allowed for tracking counters that players have.)
Mar 8, 2024
Some spells and abilities that give you may require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. You won't get any .
Mar 8, 2024
Some triggered abilities state that you "may pay" a certain amount of . You can't pay that amount multiple times to multiply the effect. You simply choose whether or not to pay that amount of as the ability resolves.
Mar 8, 2024
Some triggered abilities that state that you "may pay" a certain amount of describe an effect that happens "If you do." In that case, no player may take actions to try to stop the ability's effect after you make your choice. If the payment is followed by the phrase "When you do," then you'll choose any targets for that reflexive triggered ability and put it on the stack before players can take actions.
Mar 8, 2024
The ability that defines Robobrain War Mind's power functions in all zones, not just the battlefield.
Mar 8, 2024
Use the number of artifact creatures you control when Robobrain War Mind's second ability resolves, including Robobrain War Mind itself if it's still on the battlefield, to determine the number of energy counters you get.
Mar 8, 2024
is the energy symbol. It represents one energy counter.
