Creature — Rhino
Trample Lieutenant — At the beginning of combat on your turn, if you control your commander, put a +1/+1 counter on each creature you control.
Metagame: appears in 3 decks (6.3 %)
If you have multiple commanders, you need to control only one for the lieutenant effect to happen.
If you don’t control your commander as the lieutenant ability resolves, you won’t get its effect.