Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.){2}{R}{W}: Boros Challenger gets +1/+1 until end of turn.
Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.){2}{R}{W}: Boros Challenger gets +1/+1 until end of turn.
Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) {2}{R}{W}: Boros Challenger gets +1/+1 until end of turn.