Mika functions primarily as an off-field buffer, providing ATK and movement/attack speed bonuses to physical damage dealers and fast-hitting carries. He pairs exceptionally well with melee DPS characters who benefit from continuous stat scaling, such as physical Cryo or Cryo-infused carries. Build him with ATK and energy recharge to maintain his burst uptime, pairing Cryo artifacts with polearms that offer ATK or energy, and ensure at least one strong on-field driver to take advantage of the buffs he provides.