Yeah I'm not sure I like the "Sit on this forever then pop it for a one time benefit" cards like the shrines.
I initially had level up guys in the category with these cards, but the problem is that for a proliferate effect to be worth it, you either need to be ticking up multiple guys (As much as I'm sure UW in rise of the eldrazi was fine, I kinda don't want that kind of analysis paralysis for my drafters) or it has to be cheaper(ish) than the level up cost itself.
Like sure, I could
volt charge to add a counter to my
kargan dragonloard and swing
...or just pay a red...
Fading just kinda doesn't really work on it's own (Other than
tangle wire which needs no help)
Wall of Roots is a fine card, but actively bad with proliferate
Skinrender is sweet, but I doubt I want 2. I'm also not totally convinced he'll actually be proliferated all that often...
Contagion and
Smokestack are cards I don't want in my cube for other reasons (Good lord yeah black needed a pitch
arc lightning -_-)
...and I've always found trike a bit weak. Maybe if he cost....4? I dunno
I've seen other people run him, why? Is being an artifact that huge a benefit? I'm sure meltyman will show up and be like "Well he combos with this and this and..." but the average case just seems so horrible. a 6 mana 4/4 was below the curve for the time, and magic has changed A LOT.