Every hero runs a shard track - collect duplicates and the meter climbs (61 / 150-style counters, with denominators of 100, 150 and 200 as stars rise). Star Up consumes the full meter; Resonance lifts the whole roster from duplicate investment. Skills unlock by star count, not shards.
Example: Otta's “Brutality” skill tiers
crit burst and star-gated upgrades
The 8-Star gate on tier 4 is why endgame rosters chase duplicate copies of a single hero instead of spreading shards - the last skill tier is worth more than three fresh unlocks.
Six equipment slots feed one ATK/HP pool. A Lv.60 account running full S-quality shows ATK 1.02M / HP 3.65M with item levels in the 130s–150s - upgrade levels, not quality, are the long grind. Sort By Quality and feed spares to the Blacksmith.
The shop's gear chests carry the pity floors (Open ×10 costs 4,000 gems; an S-Grade is guaranteed within 27 or 49 draws depending on the chest). Plan the spend
The rune board is a ring of sockets around your hero - roughly 11 sockets plus premium gold-diamond slots at the premium positions. Runes carry their own levels and stack on top of gear; the Rune Workshop is where spares get refined. Rune Ruins (Dungeon tab) is the faucet - it runs daily.
The Sacred Hall is account-wide power: every level adds flat ATK and HP to all heroes. At Lv.52, one build stage costs 96.12K gold (next shown at 260K) and grants +200 ATK / +800 HP (6,200→6,400 ATK, 24,800→25,600 HP).
Costs scale with level. Adding more stage costs will turn this into a full gold-to-stats planner. The Hall button also sits on each hero's pedestal screen.
Artifacts sit on cushioned pedestals with their own star track (zero-to-three stars) and upgrade arrows. The sub-tabs split your collection into Codex (set bonuses) and per-set views; the Wish genie lamp targets a specific artifact with your next pulls.
Star caps and set bonuses vary by artifact.