The Watchman

Partner with Adre.
Defender, protection against Infect.
When another comander creature under your control would be dealt damage The Watchman fights the source of that damage. If the source is a creature, it prevents that damage and fights the creature. If it isn't, it counters it if the triggering effect's converted mana cost is equal or lower than The Watchman's power.
If another commander creature under your control would leave the battlefield, you may exile The Watchman instead.
The Watchman looses