Boros Challenger (PGRN #156) MTG

Boros Challenger is a uncommon printing from Guilds of Ravnica Promos (PGRN #156), a Creature — Human Soldier. Illustrated by Lucas Graciano.

Card text

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

{2}{R}{W}: This creature gets +1/+1 until end of turn.

Mana cost	{R}{W}
Type	Creature — Human Soldier
Power / Toughness	2 / 3
Rarity	Uncommon
Set	Guilds of Ravnica Promos (PGRN)
Collector number	156
Artist	Lucas Graciano
Released	2018-10-05

As of 2026-10-19, Scryfall listed this printing at foil $0.28 (USD). Prices change constantly, so check the live price before buying.

October 5, 2018 — Mentor compares the power of the creature with mentor with that of the target creature at two different times: once as the triggered ability is put onto the stack, and once as the triggered ability resolves. If you wish to raise a creature's power so its mentor ability can target a bigger creature, the last chance you have to do so is during the beginning of combat step.
October 5, 2018 — If the target creature's power is no longer less than the attacking creature's power as the ability resolves, mentor doesn't add a +1/+1 counter. For example, if two 3/3 creatures with mentor attack and both mentor triggers target the same 2/2 creature, the first to resolve puts a +1/+1 counter on it and the second does nothing.
October 5, 2018 — If the creature with mentor leaves the battlefield with mentor on the stack, use its power as that creature last existed on the battlefield to determine whether the target creature has less power.