Cheapest priced copy (Dominaria United Commander): $0.99 at Card Kingdom, near mint, their price list as of .
Tetsuo, Imperial Champion 
Legendary Creature — Human Samurai · 3/3 · Mythic · Dominaria United Commander · #44
Whenever Tetsuo attacks, if it's equipped, choose one —
• Tetsuo deals damage equal to the greatest mana value among Equipment attached to it to any target.
• You may cast an instant or sorcery spell from your hand with mana value less than or equal to the greatest mana value among Equipment attached to Tetsuo without paying its mana cost.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.99 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dominaria United Commander | 44 | Mythic | $0.99 | $1.99 |
| Dominaria United Commander | 66 | Mythic | — | — |
| Secret Lair Drop (Trap Jaw, Wizard of Weapons) | 2789 | Mythic | $2.49 | $2.99 |
One ruling from Wizards of the Coast
- 9 September 2022If Tetsuo isn't equipped when it's declared as an attacking creature, the ability won't trigger. If Tetsuo isn't equipped when the ability resolves, the ability won't do anything.