Alena, Kessig Trapper

First strike
{T}: Add an amount of {R} equal to the greatest power among creatures you control that entered this turn.
Partner (You can have two commanders if both have partner.)

Fyndhorn Brownie

Conduit Pylons

When this land enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)
{T}: Add {C}.
{1}, {T}: Add one mana of any color.

Explosive Entry

Destroy up to one target artifact. Put a +1/+1 counter on up to one target creature.

Fyndhorn Elves

Signpost Scarecrow

Vigilance
{2}: Add one mana of any color.

Aim High

Untap target creature. It gets +2/+2 and gains reach until end of turn.

Elven Cache

Return target card from your graveyard to your hand.

Seeker of Skybreak

Rampant Growth

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Crossroads Candleguide

When this creature enters, exile up to one target card from a graveyard.
{2}: Add one mana of any color.

Llanowar Elves

Halana, Kessig Ranger

Reach
Whenever another creature you control enters, you may pay {2}. When you do, that creature deals damage equal to its power to target creature.
Partner (You can have two commanders if both have partner.)

Energy Refractor

When this artifact enters, draw a card.
{2}: Add one mana of any color.

Orochi Leafcaller

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Mind Stone

{T}: Add {C}.
{1}, {T}, Sacrifice this artifact: Draw a card.

Prismite

Gruul Signet

Provoke

Untap target creature you don't control. That creature blocks this turn if able.
Draw a card.

Wood Elves

When this creature enters, search your library for a Forest card, put that card onto the battlefield, then shuffle.

Elvish Mystic

Civic Gardener

Whenever this creature attacks, untap target creature or land.

Explosive Derailment

Spree (Choose one or more additional costs.)
+ {2} — Explosive Derailment deals 4 damage to target creature.
+ {2} — Destroy target artifact.