Top Tree Striker really feels mostly useless in comparison to Thundercrash and Bottom Tree Striker generally outperforming it in all aspects and in all gamemodes. To help rework it, I think Bungie should rework its super into the D1 Striker version and increase the damage resistance during its use to compensate for the risk. Aka the "one and done" shutdown version. Make it a single-use smash, but increase its AOE blast effect and damage, and make it leave a damaging AOE aftermath like Thundercrash does, which is doubled in duration by Aftershocks. In addition, I think the damage ramp-up effect and maximum damage potential of Terminal Velocity should be greatly increased (i.e. making it reach its maximum damage potential sooner, and increasing the maximum damage that it can do compared to currently). I also think Armamentarium should also stack with Magnitude, giving you three grenade charges instead of a maximum cap of two to increase its usage with Top Tree Strikers. Keep all of its current subclass tree perks, but buff them slightly and rework the super so it has its own unique Striker identity compared to the other two (especially since Bottom Tree Striker utterly outperforms Top Tree's Striker roaming version by miles since it got buffed). I also think Aftershocks should be slightly buffed to recharge your Seismic Strike by damaging enemies with your grenades. For example, it would read "Damaging enemies with Seismic Strike recharges your grenade, and damaging enemies with your grenade recharges Seismic Strike." Keep the ability chain of grenade + melee going since its neutral game is otherwise pretty mediocre for high-level play.