
Artifact Creature — Construct ·
Tetravus is part of 2 combos legal in Commander. Often combined with Sage of Hours and Cathars' Crusade.
Flying
This creature enters with three +1/+1 counters on it.
At the beginning of your upkeep, you may remove any number of +1/+1 counters from this creature. If you do, create that many 1/1 colorless Tetravite artifact creature tokens. They each have flying and "This token can't be enchanted."
At the beginning of your upkeep, you may exile any number of tokens created with this creature. If you do, put that many +1/+1 counters on this creature.
The cards that most often join Tetravus across all of its 2 combos.
Tetravus can stand in for these generic cards, so it also fits the combos that require them.