Buster Sword

three generic mana Artifact — Equipment

Equipped creature gets +3/+2.

Whenever equipped creature deals combat damage to a player, draw a card, then you may cast a spell from your hand with mana value less than or equal to that damage without paying its mana cost.

Equip two generic mana

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52.65 $

Foil 62.65 $

13 printings · up to 114.59 $

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Buster Sword rulings

2025-06-06
You choose whether to cast a spell from among the cards in your hand as Buster Sword's middle ability resolves. You can't wait to cast one later in the turn. Timing restrictions based on the card's types are ignored.
2025-06-06
If a spell you cast has in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.
2025-06-06
If you cast a spell "without paying its mana cost," you can't choose to cast it for any alternative costs. You can, however, pay additional costs, such as kicker costs. If the card has any mandatory additional costs, those must be paid to cast the spell.

Buster Sword keyword rules

Equip Rule 702.6

Equip is an activated ability of Equipment cards. “Equip [cost]” means “[Cost]: Attach this permanent to target creature you control. Activate only as a sorcery.”

For more information about Equipment, see rule , “Artifacts.”

Equip abilities may further restrict what creatures may be chosen as legal targets. Such restrictions usually appear in the form “Equip [quality]” or “Equip [quality] creature.” These equip abilities may legally target only a creature that’s controlled by the player activating the ability and that has the chosen quality. Additional restrictions for an equip ability don’t restrict what the Equipment may be attached to.

If a permanent has multiple equip abilities, any of its equip abilities may be activated.

“Equip planeswalker” is a variant of the equip ability. “Equip planeswalker [cost]” means “[Cost]: Attach this permanent to target planeswalker you control as though that planeswalker were a creature. Activate only as a sorcery.”