ASPD & Cast Time
Speed mechanics: how fast you swing, how fast you cast, how soon you can act after.
ASPD — Attack Speed
- Soft cap commonly around 190+
[VERIFY current cap in RO M] - Higher ASPD → faster auto-attacks → more DPS for crit / auto-attack builds
- Inputs:
- AGI (primary)
- DEX (secondary)
- Weapon class base ASPD (daggers fast, two-handed slow)
- ASPD% buffs (Two-Hand Quicken, Adrenaline Rush, etc.
[VERIFY]) - ASPD-flat cards (e.g. Whisper card on garment
[VERIFY])
Breakpoints
ASPD has diminishing returns, with values that “click” into the next attack frame. Find the next breakpoint above your current ASPD for your weapon class — that’s the target. File breakpoint tables per weapon when you confirm them.
Cast time — three components
RO M splits casting into three pieces. They’re tuned independently.
VCT — Variable Cast Time
- The reducible portion
- Reduced by: DEX (primary), INT (secondary), buffs (Suffragium, Magic
Strings)
[VERIFY] - Sketch:
VCT_actual = VCT_base × (1 − reduction%)[VERIFY] - Hits 0 at sufficient DEX/INT — common goal for casters: instant cast
FCT — Fixed Cast Time
- The non-reducible portion
- Reduced only by FCT-reduction sources (specific cards, runes, gear,
certain skills
[VERIFY]) - Even a small FCT (~0.5 sec) breaks “instant cast” — plan for it explicitly
ACD — After-Cast Delay
- Cooldown between successive casts
- Reduced by ACD% sources (specific cards, runes, set bonuses)
- Different from per-skill cooldowns, which are skill-specific
Practical implications
- Caster goals: hit instant VCT first, then push FCT and ACD
- Auto-attacker goals: hit ASPD breakpoint for your weapon, then stack ATK
- Skill-spam hybrid: usually ACD-limited, not VCT-limited — don’t over-invest in DEX past your VCT target
Common gotchas
- ASPD potions / buffs can push you past a breakpoint temporarily — useful for burst windows
- Weapon swap changes base ASPD → effective ASPD changes too. If you swap weapons in combat, plan around both states
- Cast animation lock: some skills lock you in animation regardless of reductions; those need FCT-reduction to “feel” instant
- Mounted state: some classes have ASPD penalties / bonuses while mounted
[VERIFY]
See also
- stat-formulas.md — DEX / AGI / INT inputs
- damage-formula.md — where ATK / MATK go from here
- Mechanics MOC
Backlinks
Sources / verification log
- 2026-05-02 — scaffold; concepts stable across RO. Exact reduction formulas
and ASPD cap
[VERIFY]against current RO M tooltips