Boros Challenger [Mystery Booster]

Boros Challenger [Mystery Booster]Set: Mystery Booster Type: Creature Human Soldier Rarity: Uncommon Cost: {R}{W} 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. "Send your champion. I could use a light workout."

where X is the number of nontoken permanents of the chosen color they control

But the family of goblins that had moved in behind his left ear was starting to get really irritating

Set: Friday Night Magic 2002 Type: Enchantment Rarity: Rare Cost: {1}{W}{W} Artifact and enchantment spells your opponents cast cost {2} more to cast

Set: Wizards Play Network 2010 Type: Creature — Beast Rarity: Rare Cost: {G}{G}{G} Flying

Set: Fourth Edition (Foreign Black Border) Type: Enchantment Rarity: Rare Cost: {3}{B} {B}

Enchanted creature gets +4/+1 and blocks each combat if able

Set: Commander 2018 Type: Enchantment Rarity: Rare Cost: {3}{W}{W} Whenever you cast an enchantment spell

Leader of the Knights of Stromgald

As long as Lightning Mauler is paired with another creature

Set: Chronicles Type: Artifact Rarity: Rare Cost: {6} At the beginning of your upkeep

the Mindrazer deals 1 damage to that player

Set: Throne of Eldraine Type: Creature — Human Knight Rarity: Uncommon Cost: {4}{R} Trample