Free ~100 COA — Account Birthday Reward: set your birthday to tomorrow (leave a 1-day gap), then when it triggers pick a hero you already own to convert the reward into ~100 COA.
Most consistent — Weekly Diamond Pass (~70 COA/7 days): but you must open the Daily Choice bundle each day and pick the 10-COA option.
Instant — Starlight now grants ~300 COA on purchase (no level requirement); Sanrio top-up bonus gives ~50 COA while live.
Cheap stackers: COA Daily Supply (10💎/day → 12–50 COA), Monthly Supply (~99💎 → ~120–300 COA), Monthly Value Pack (+ epic-skin chance).
Recharge bonuses: special bundle ~180 COA (monthly) / ~20 COA (weekly); Recharge Gift event milestones (~60 COA at 50💎, another ~60 at 250💎).
Sourcing & caveats
Crystal of Aurora (COA) quietly became a Collector-skin currency. Its main use shifted from the Magic Wheel to the monthly Collector event — the more COA you hold, the cheaper your target Collector skin gets. This is Pixie's June 2026 roundup of where to farm it, from one free trick to the cheap daily stackers. Single-source (Pixie) and every amount is creator-estimated — exact COA per source varies by RNG and account, so treat the numbers as ballparks, not guarantees. The mechanics themselves are current and checkable in-client.
Free
- Account Birthday Reward — ~100 COA. Profile → Edit Info → set your birthday to the next day (e.g. today June 12 → set June 13). Leave a one-day gap — setting today's date can stop the reward from appearing until next year. When the reward triggers, choose a hero you already own, and it converts to ~100 Crystal of Aurora. A lot of players miss this one.
Cheap diamond stackers
- COA Daily Supply — 10💎/day. Random 12–50 COA per buy. Small, but the cheap cost makes it ideal for stacking a little every day.
- COA Monthly Supply — ~99💎, once/month. Bigger payout, roughly 120–300 COA depending on RNG.
- Recharge-menu special bundle. Monthly version ~180 COA (
$4.06); weekly version ~20 COA ($0.83). Diamonds + other rewards on top.
Premium & value
- Starlight — ~300 COA instantly. Buying Starlight now credits ~300 COA on purchase, no level requirement (unlike the old system) — straight into your savings.
- Sanrio top-up bonus (live). Top up any amount, claim the event item, exchange it for ~50 COA + a free COA.
- Pharsa All-Star Battle Pass premium — 599💎. ~150 COA total (25 COA/day × 7 days) plus painted skins and resources.
- Weekly Diamond Pass (WDP) — ~70 COA/7 days. Pixie's pick for most consistent source — but you must open the Daily Choice bundle each day and pick the 10-COA reward; do that all seven days for ~70 COA. Don't just buy it and forget.
- Monthly Value Pack — once/month. Solid value plus a chance at an epic skin — Vale Keeper of the Winds, Gatotkaca Tide Preserver, or Carmilla Ice Talon.
- Recharge Gift event (appears alongside major skin events). Milestone COA bonuses — ~60 COA at the 50💎 milestone, another ~60 at 250💎, plus rewards from higher tiers. Not always available; grab it when it shows.
Notes
- Amounts are creator-estimated. Every COA figure here is Pixie's estimate; RNG sources (Daily/Monthly Supply) vary per draw. Numbers are ballparks.
- Single-source. One creator (Pixie). The mechanics are current and verifiable in-client; the values aren't second-sourced.
- Why it matters: COA discounts the monthly Collector event — stacking it ahead of a Collector you want is the payoff. See the August Collector digest for an example of what COA goes toward.
TaggedValeGatotkacaCarmillacrystal of auroracollector eventeconomyweekly diamond passstarlightjune 2026
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