

With crit factored in, Mythril Sword puts out 156.0 DPS against 98.1 for Cobalt Naginata — about 59% more damage per second. Base hits are Cobalt Naginata 44 vs Mythril Sword 50, so the gap comes as much from attack speed and crit as from raw damage.
Mythril Sword swings faster at a 20-tick use time versus 28, so it lands on-hit debuffs like ichor, procs set bonuses, and reapplies knockback more often — an edge the flat DPS figure understates.
For crowd control, Mythril Sword hits with more knockback (6 vs 4), keeping enemies at range while you reposition.
Both are Melee weapons, so the same armor set and class accessories buff either one — you can swap between them without rebuilding your loadout.
| Stat | Cobalt Naginata | Mythril Sword |
|---|---|---|
| Damage | 44 | 50 |
| Use time | 28 ticks | 20 ticks |
| Crit chance | 4% | 4% |
| Knockback | 4 | 6 |
| Defense | 0 | 0 |
| Mana cost | 0 | 0 |
| Shoot speed | 4.3 | 0 |
| Sells for | 90 | 2 7 |
Cobalt Naginata averages 98.1 DPS with crit. Mythril Sword averages 156.0 DPS with crit. Mythril Sword is ahead by 57.9 DPS.
Mythril Sword has the shorter 20-tick use time, so it attacks faster than Cobalt Naginata at 28 ticks.
Yes — both are Melee weapons and share the same armor and accessory bonuses.
Yes — both belong to the early-hardmode tier.