It takes too much setup for my liking, but with the right amount of support it could do some work
Best Fear Cards Even though the ability has been rendered obsolete for new sets, a lot of cards with fear still see plenty of play in formats like Commander
Tap the creature to add a green mana then put a -1/-1 counter on it to untap
If I had to play a tournament now, this is the deck Id try
Its best when used in a deck with lots of sorcery and damage-dealing cards, as it forces players to pay an increased upkeep cost of one colorless mana per creature (in addition to existing upkeep costs)
They have some great ones, old and new: Eumidian HatcheryEumidian Hatchery Fabled PassageFabled Passage Vernal FenVernal Fen Twilight MireTwilight Mire If you had told me five years ago that Fabled PassageFabled Passage of all things would end up in a precon, I wouldnt have believed you