4-piece Proto Punk is standard for support/defense.
Focus on Impact , as her shield health and certain buffs scale with it.
Use her Perfect Assist (parry), then follow up with an attack and an EX Special to trigger a retaliation shield bash for only 20 energy . Debuffing Enemies
Her passive triggers a debuff when she performs a or Defensive Assist , making enemies take 25% more damage for 30 seconds.
You can manually trigger a "suction" effect to group small enemies by holding her basic attack (costs 1 assist point). Build Quick-Start