Plains

Swamp

Arcane Signet

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

Command Tower

Tower Winder

Knight's Pledge

Enchant creature
Enchanted creature gets +2/+2.

Leonin Warleader

Whenever this creature attacks, create two 1/1 white Cat creature tokens with lifelink that are tapped and attacking.

Loxodon Line Breaker

Moorland Inquisitor

{2}{W}: This creature gains first strike until end of turn. (It deals combat damage before creatures without first strike.)

Pacifism

Enchant creature
Enchanted creature can't attack or block.

Sanctuary Cat

Serra Angel

Treizeci, Sun of Serra

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

Angelic Guardian

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever one or more creatures you control attack, they gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)

Arena Beginner Set