With "Moose in a time cube" Leo gets time spells (many of which are gated behind tiered level requirements -> not a good fit for FCA), if we then get her FCA next floor she can take a class with good mobility skills for skirmishing and level-to-keep those.Leo as the fast skirmisher
Taylor as the multi-body actor with SysOp
Drew as the lucky guy actor with bling.
Moose as the bruiser
Haste should synergize well with skirmishing. (more time -> to the enemies she is quicker)
Timecube can break apart groups or delay pursuing enemies.
And if she can get some points of int on herself she can use "Benefit: Borrowed Time" from behind Tay and Drew to hurry into the enemy group, deal damage without worrying about being hit, and when borrowed time runs out she returns safely back to the group.
And with time rip she'll get a spell that "does the same amount of damage as Magic Missile to most things, but it also accelerates timers on whatever it hits. It's a great way to bring down something like a Shield spell. It also ignores most armor and some damage-reduction effects."