I think this is the world where this card *could* be good:
It would require multiple warlock cards that go wide and AOE buff. Something that plays like Token Druid did/does, and exhausts your opponent's AOE.
Some of the pieces are there: Doubling Imp, Rafaam's Scheme, Fiendish Circle, Omega Agent, Hir'eek, the Bat.
The only AOE Buff right now is Grim Rally and that is obviously nowhere near enough. It almost demands something along the lines of Soul of the Forest.
A universe exists where this card isn't as bad as it looks right now. But that universe needs a lot of help.
I really miss the Crystal Weaver...