PSA: Brand support is fire right now

All of your spells will consume ALL of the spellthief stacks. All of them. Your passive deals percent max health magic damage. Now if only we were in a meta where tanks reigned supreme. Possibly with subpar MR itemization at the same time. Your Q is a two second stun with high base damage. Granted, you have to land another skill, but your E is point and click.

Just pretend he's Vel'koz support except he trades his ability to shoot the LEARNING BEAM in exchange for tank killing power and a bit of hard CC (which is useful in counterengages.)