OUTERPLANE Tio Beginner Build and Progression Guide

Tio is an optimal early healer in OUTERPLANE because she is an accessible two-star unit who cleanses debuffs and heals allies automatically outside of her turn order. To maximize her effectiveness, prioritize upgrading her passive skill, equip her with Speed and Health or Resilience gear, and build high Effect Resistance so enemy crowd control does not disable her recovery loop.

Why Tio Excels in Early Progression

Most high-rarity healers must wait for their action gauge to fill before removing negative status effects, leaving allies vulnerable to damage-over-time effects or defense breaks. Tio circumvents this action-order bottleneck through her passive skill, which triggers immediately when an ally receives a debuff.

Beyond her turn-order advantage, Tio offers significant resource efficiency:

Lower summoning barrier: As a base two-star character, her duplicate memory pieces drop frequently from standard banners, allowing faster transcendence than three-star units like Saeran or Demiurge Astei.
Cheaper skill investment: Maxing her abilities consumes fewer rare skill manuals, freeing scarce upgrade materials for primary damage dealers.

Skill Kit and Upgrade Priority

Tio’s healing output scales with her maximum Health. Upgrade her skills in the following order:

Special Passive (Priority 1): Automatically removes debuffs and restores health to affected allies based on Tio's max HP. Level this first to reduce its internal trigger cooldown.
Burst Skill / Ultimate (Priority 2): Provides party-wide healing alongside supportive defensive buffs. Level this second to increase raw healing multipliers and barrier strength.
Basic Skill (Priority 3): Deals single-target damage and contributes action gauge progression or Action Points (AP). Leave this at level one until late-game resources are plentiful.

Stat Targets and Gear Sets

Tio cannot cleanse allies if she is incapacitated by stun, freeze, or silence effects. Aim for 80% to 100% Effect Resistance by the mid-game, then stack Speed and Health to cycle her ultimate and scale her healing.

Use a four-piece Speed Set paired with a two-piece Health Set or Resilience Set.

Equipment Slot	Main Stat	Key Substats
Weapon	Flat Attack (Fixed)	HP%, Effect Resistance, Speed
Armor	Flat Defense (Fixed)	HP%, Effect Resistance, DEF%
Helmet	Flat HP (Fixed)	Speed, Effect Resistance, DEF%
Boots	Speed or HP%	Speed, HP%, DEF%
Necklace	HP%	Effect Resistance, Speed, HP%
Ring	Effect Resistance% or HP%	HP%, DEF%, Speed

Boss Strategy and Team Compositions

Tio performs best against bosses that rely on persistent negative status effects rather than unmitigated, single-hit burst damage.

Key Matchup (Chimera Gear Dungeon): Chimera regularly applies bleed, burn, and defense reduction. Tio counters these mechanics by removing the status effects before secondary attacks land, stabilizing auto-battle runs.
Direct Damage Limitation: Tio’s passive requires an incoming debuff to trigger. When facing bosses that deal high raw physical or magical burst without debuffs, run a defensive Vanguard such as Veronica or K to absorb direct hits with shields and taunts.

Recommended Starter Team Composition

Healer / Cleanser: Tio (placed in the backline to avoid unnecessary direct targeting)
Main Striker: Noa (break-gauge depletion and critical damage)
Support / Buffer: Valentine or Dolly (critical chance buffs, speed boosting, or enemy hit-rate reduction)
Defender: Veronica or K (damage redirection, shields, and front-line taunts)