Don't Have

Boros Elite

Battalion — Whenever this creature and at least two other creatures attack, this creature gets +2/+2 until end of turn.

Doomed Traveler

When this creature dies, create a 1/1 white Spirit creature token with flying.

Blade Instructor

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)

Have

Plains

Acrobatic Leap

Target creature gets +1/+3 and gains flying until end of turn. Untap it.

Celestial Flare

Target player sacrifices an attacking or blocking creature of their choice.

Act of Heroism

Untap target creature. It gets +2/+2 until end of turn and can block an additional creature this turn.

Attended Knight

First strike
When this creature enters, create a 1/1 white Soldier creature token.

Benalish Knight

Flash (You may cast this spell any time you could cast an instant.)
First strike (This creature deals combat damage before creatures without first strike.)

Charge

Creatures you control get +1/+1 until end of turn.

Beloved Princess

Lifelink
This creature can't be blocked by creatures with power 3 or greater.