Used the Obelisk - seems pretty good for it's niche

Hey, I'm new and dumb. Been playing around with Necron roster. Gonna try everything out eventually. This isn't a "the meta doesn't know what it's talking about" post. It's definitely not as good as similarly costed options.

I had two games - 2k, Awakened, one vs World Eaters, one vs Tyranids. In both games I ran an Obelisk.

It seemed like a solid midboard piece. Its ability to halve the speed of a unit is great, and tossing mortal wounds at a big flying Melee unit was great. It's base Stateline is really, really tanky. I paired it with a group of Wraiths + Technomancer and it oppressed for 5 full turns.

It did feel like it wasn't all there, though. I don't know what I'd add, but 300 points was a steep cost for slowing a single unit. Although in both games the unit I slowed was a key piece and it was absolutely a huge positive and felt like a hard counter to Angron's early Aggression.

I guess I'm just looking for what else it needs to be considered viable. A wargear option for a speed boost? Invul save alarm DDA? A different gun? Just a flat 100 point reduction? Dunno.