After the cooldown reduction to Slowing Impact and Slow buff to SupStrike, Thagomizer just seems to be a really inferior slow with no real standout qualities other than a name change and painful 3 turn cooldown. You gotta give it something. Deccel Imp has a 1 turn CD with a 2 turn Slow and Slow Imp is now 2 turn CD with 3 turn Slow. Thag at 3 turns needs something more. Maybe…
A: CD reduction to 2 like Slowing Impact
B: 4 turn Slow instead of 3.
C: A Slow buff to -75% speed
D: A vulnerability debuff for 1 turn
E: A 0.10% DoT over 2 or 3 turns. (Probably not this since it goes too far into tank busting territory)
I’m personally leaning toward a -75% slow. They already have had other odd numbers like SupStrike’s previous 33% and then there’s Mimimal Speed Up Strike with a 10% buff to speed