I really don’t know how long Tel will be around. There seem to be fewer Tel defences in diamond arena, but the alliance we just faced had 27 tel defences (flanked by double reds - so Vel was effectively assassinated). And these guys open up a can of whopp ■■■ on us. The defences were STRONG.
So I would guess Tel be around in one form or another for a while yet. And against her, Grimble is pretty damn good. I run him with C Rig, C Tib, C Quintus and Proteus. If Tel casts first then I can use Grimble he fills up C Quintus and then its an instant win. I’ve had far more wins with my purple stack than losses against Tel defences (although I haven’t matched up against the very elite defences, just the close-to-top ones)
So my vote is for Grimble… but only if you can include a powerful slow mana hero like Alfrike with him (or a slow of another color). Your powerful purples are average speed too so the use case is not great with them