Cheapest priced copy (Masters 25): $0.35 at Card Kingdom, near mint, their price list as of .
Heavy Arbalest 
Artifact — Equipment · Uncommon · The List · #A25-225
Equipped creature doesn't untap during its controller's untap step.
Equipped creature has "{T}: This creature deals 2 damage to any target."
Equip {4}
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Masters 25 | 225 | Uncommon | $0.35 | $0.49 |
| The List | A25-225 | Uncommon | $0.35 | — |
| Scars of Mirrodin | 164 | Uncommon | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 16 March 2018The equipped creature is the source of both the damage ability and the resultant damage, not Heavy Arbalest. For example, if Heavy Arbalest equips a green creature, the ability can target a creature with protection from artifacts but not one with protection from green.
- 16 March 2018The creature that doesn't untap during its controller's untap step is the one that Heavy Arbalest is equipped to as that untap step begins. If a creature was tapped to activate the ability granted to it by the Arbalest, but the Arbalest is no longer equipping it, it will untap as normal.