Bolt Bend

This spell costs {3} less to cast if you control a creature with power 4 or greater.
Change the target of target spell or ability with a single target.

Peace and Quiet

Bruse Tarl, Boorish Herder

Whenever Bruse Tarl, Boorish Herder enters or attacks, target creature you control gains double strike and lifelink until end of turn.
Partner (You can have two commanders if both have partner.)

Slate of Ancestry

{4}, {T}, Discard your hand: Draw a card for each creature you control.

Walking Atlas

{T}: You may put a land card from your hand onto the battlefield.

Kediss, Emberclaw Familiar

Whenever a commander you control deals combat damage to an opponent, it deals that much damage to each other opponent.
Partner (You can have two commanders if both have partner.)

Fumigate

Destroy all creatures. You gain 1 life for each creature destroyed this way.

Spirit of the Labyrinth

Each player can't draw more than one card each turn.

Chained to the Rocks

Enchant Mountain you control
When Chained to the Rocks enters, exile target creature an opponent controls until Chained to the Rocks leaves the battlefield. (That creature returns under its owner's control.)