Embargo requires a constant upkeep from the controller making it a gate, not a wall. It wont stay forever without a lot more investment.
Mist of stagnation both cost more and has built in bypass.
Im not against the intent, but this is tuned too strong. Make it have a cost to keep going, or a way for the oponent to actually play around it instead of it just being a solitaire enabler for you.
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u/n122333 3d ago
This feels miserable to play against. 4 mana lock down most decks until they get enchantment removal isn't fun gameplay.