Blade of the Oni
Artifact Creature — Equipment Demon
Menace
Equipped creature has base power and toughness 5/5, has menace, and is a black Demon in addition to its other colors and types.
Reconfigure 
(: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)
- CMC
- 2
- Mana cost
- Color identity
- B
- Rarity
- mythic
- Set
- Magic Online Promos
- Price
- —
- EDHREC rank
- #9744
Blade of the Oni turns any creature into a 5/4 black Demon with menace for just one black mana — an absurd rate for the effect. Tetsuo, Imperial Champion in particular wants this immediately, since strapping it to the commander delivers a must-block threat that punishes any board that can't double-block.
Best Commanders
Commanders with the highest synergy
Tetsuo, Imperial Champion
Tetsuo, Imperial Champion already wants to suit up with Equipment, and Blade of the Oni's one-mana reconfigure cost means you're never wasting a turn deploying it — slap it on Tetsuo, swing in as a 5/4 menace Demon, and the opponent needs two blockers just to survive.
Ardyn, the Usurper
Ardyn, the Usurper rewards aggressive black creatures and wide attacks, and Blade of the Oni delivers a disposable 5/4 menace body any time you need one — reconfigure it off a creature that's about to trade and the Equipment lives to fight again.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
In Commander, Blade of the Oni earns its slot in any Equipment-focused or black-aggro shell — one mana to reconfigure is nearly unmatched at this price point, and the menace plus the 5/4 stat line matter in a multiplayer environment where you need to punch through. Competitive non-rotating formats like Modern and Legacy have faster, more linear strategies that don't lean on Equipment value, so Blade of the Oni doesn't see serious play there. Pioneer is similar: the card is legal but the format's aggro decks prefer creatures with built-in text rather than a two-card dependency. Oathbreaker mirrors the Commander experience — if your signature spell involves combat or your planeswalker wants a cheap threat, it's a clean include.
Key Combos
Combo lines featuring this card
Price Context
Current price
unknown tier
Current pricing data for Blade of the Oni isn't available in the system, so check Scryfall or your preferred retailer for the live number. Given its niche but enthusiastic Commander audience and limited competitive crossover, it tends to sit in the affordable range — worth confirming before you trade for it.
Explore
Sources
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.