You choose the value for X as the last ability resolves. You can't choose a value for X that's greater than the number of untapped Myr you control.
Myr Battlesphere
As the last ability resolves, you can tap untapped Myr you control even if Myr Battlesphere is no longer on the battlefield by then. If that has happened, Myr Battlesphere won't be able to get the +X/+0 bonus, but it will still deal X damage to the appropriate player or planeswalker.
You can tap any untapped Myr you control as the last ability resolves, not just the Myr tokens you created with the first ability. This includes Myr that haven't been under your control since your most recent turn began.
Last observed at $0.15. Over the trailing 90 days the price moved between $0.15 and $0.99 across 2 observations. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
Last observed on Scryfall 15 days ago at $0.15.
This printing is one of 3 catalogued treatments from M3C — the lineup includes Foil and Nonfoil alongside the standard finish. Across our catalog the Rarix library tracks every variant in the same family so collectors can compare price, scarcity and demand inside a single lineage.
This card belongs to *Modern Horizons 3 Commander* (released June 2024).
Card #301 in Modern Horizons 3 Commander.
Rarity tier: rare. Rares occupy the bottom-of-pack rare slot in standard boosters.
Card type: Artifact Creature — Myr Construct. Mana cost: {7} (7 converted).
Legal in Modern, Legacy, Vintage, Commander, Brawl, and Historic.
EDHrec ranks this card #868 in Commander, putting it in the common-include tier of the format's playable pool.
Illustrated by Franz Vohwinkel. Rarix tracks 555 other cards credited to this artist across the catalog — browse the full gallery to see the body of work.
Search across TCGplayer, eBay sold, Cardmarket EU, and Star City from the marketplace deeplinks above to compare live listings.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Franz Vohwinkel
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
