This ISO-8 Strategy is for Emma Frost
I utilize her Phoenix 5 outfits.
(Phoenix 5 Infiltrator)
4x Robust Shards (Health/Stamina/Attack)
4x Steadfast Shards (Health/Stamina/Evasion)
This is a sufficient build for her. Health so she can take a hit, Attack so she can deal more damage and Evasion so she can attempt to match the swift skills of other Infiltrators. Stamina is for longer lasting fights.
(Phoenix 5 Tactician)
8x Robust Shards (Health/Stamina/Attack)
This is sufficient enough as this build has increased her damage, health and stamina very well.