Echo
What it is
Echo is a stat-category artifact that listens for the player_healed signal. Each heal briefly sharpens the ship’s trigger (a flat fire-rate buff) and detonates a tight, ship-centered ring that damages nearby enemies. The artifact pairs a defensive context (taking a heal) with an offensive payoff (fire-rate burst plus an AoE punish ring).
Identity
| Field | Value |
|---|---|
| Display name | Echo |
| Category | stat |
| Icon | 🔔 |
| Primary color | 66ddee |
| Secondary color | 3399aa |
| Bright color | aaeeff |
| Damage tag | none (type-agnostic) |
| Trigger | signal: player_healed |
| Trigger conditions | none — every heal procs the artifact |
| Proc audio cue | flavored cue plays on every proc |
| Passive flat-bonus stat | Fire Rate (flat additive percentage points) |
Per-tier values
The artifact ships four authored tiers indexed uncommon → rare → epic → legendary. A fifth common tier is prepended at runtime and shares the uncommon values record; differentiation between common and uncommon comes from the artifact-wide flat bonus, not from this table.
Per proc, the triggered effect carries three named magnitudes (fire-rate buff value, buff duration, AoE damage) plus the per-tier flat passive fire-rate bonus.
| Tier | Fire-rate buff | Buff duration (s) | Heal-echo ring damage | Flat fire-rate bonus |
|---|---|---|---|---|
| 1 (common) | +25 | 8 | 25 | +10 |
| 2 (uncommon) | +25 | 8 | 25 | +20 |
| 3 (rare) | +40 | 10 | 40 | +30 |
| 4 (epic) | +60 | 12 | 60 | +40 |
| 5 (legendary) | +90 | 15 | 85 | +50 |
The heal-echo ring is a flat-damage AoE with a fixed 160 px radius across all tiers; only the damage scales with tier. The 160 px radius is the smallest in the family of ship-centered ring artifacts because the heal context is treated as defensive/utility rather than offensive.
Effect
When the player_healed signal fires, the artifact runs the following actions in order. There are no gating conditions and the proc shows a banner.
| Step | Action | Parameters |
|---|---|---|
| 1 | Apply fire-rate buff | flat additive on the ship’s fire-rate stat, magnitude and duration from the per-tier table, refresh stacking, max stacks = 1 |
| 2 | Detonate heal-echo ring | flat damage from the per-tier table, 160 px radius, centered on the ship |
| 3 | Play VFX burst-and-ring | bright color aaeeff, 16 particles, scale 4.0, lifetime 0.35 s |
| 4 | Flash artifact HUD slot | accompanied by the artifact’s flavored audio cue |
The fire-rate buff’s source tag is fixed to this artifact, so re-procs while the buff is still active reset the duration timer rather than adding a second buff instance.
Stacking rules
- The fire-rate buff uses refresh stacking with a maximum of one stack from this artifact’s source tag. A second heal inside the active window does not stack the magnitude; it resets the duration to the full tier value.
- Each proc fires its own heal-echo ring instance. The AoE damage is applied per-proc and is not gated by any cooldown beyond the heal signal itself.
- Echo shares the
player_healedtrigger with the magnet/damage heal-burst artifact and with the luck-on-heal artifact. All three can be equipped simultaneously and each procs independently on every heal — they do not share cooldowns or stacks. Equipping the triple means a single heal fires fire-rate, damage, magnet, and luck buffs at the same moment alongside Echo’s heal-echo ring. - Tier upgrades replace the per-tier values record wholesale. Mid-run tier changes do not apply — tier is set at run start by meta-progression and does not increase during a run.
Summary
Echo is a heal-triggered double payload: a refreshing flat fire-rate buff and a 160 px ship-centered AoE ring. Magnitudes scale 25 / 25 / 40 / 60 / 90 for the fire-rate buff, 8 / 8 / 10 / 12 / 15 seconds for buff duration, and 25 / 25 / 40 / 60 / 85 for the ring damage across common → legendary, with the flat passive fire-rate bonus rising on the standard 10 / 20 / 30 / 40 / 50 ramp. The ring radius is fixed at 160 px (the smallest in the ship-centered ring family) because the heal trigger context is defensive.
EXTRACT-CANDIDATE:
- The “4 authored tiers + 1 runtime-prepended common tier sharing uncommon values, with common-vs-uncommon differentiation from the artifact-wide flat bonus” rule is a general artifacts-system fact and belongs on the
artifactsroll-up page, not duplicated per entity. - The 10 / 20 / 30 / 40 / 50 flat-bonus ramp is shared by every artifact and is already documented on the artifacts roll-up; a dedicated
concepts/artifact-tier-mapping.mdcould host it for cross-linking. - “Refresh stacking with max stacks = 1” is a recurring buff-stacking mode across most stat-burst artifacts. Candidate concept page:
concepts/buff-stacking-modes.md. - “Ship-centered heal/streak/event ring” geometry (radius + flat damage centered on the ship’s position) recurs across multiple artifact families. Candidate concept page:
concepts/centered-aoe.md. - The
player_healedsignal and its multi-artifact triple-stacking opportunity (Echo + vitality/heal-burst + caretaker-style luck-on-heal) is a shared trigger concept. Candidate concept page:concepts/player-healed-signal.md. - The
flash_artifactaction plus banner-on-proc plus per-artifact flavored audio cue are shared behaviors across all triggered artifacts and belong on theartifactsroll-up or aconcepts/artifact-proc-feedback.mdpage.