Champions of Minas Tirith is a rare Creature — Human Soldier card from Tales of Middle-earth Commander (LTC), collector number 94. Current market price: $1.65, TCGplayer market prices via Scryfall.
When this creature enters, you become the monarch. At the beginning of combat on each opponent's turn, if you're the monarch, that opponent may pay {X}, where X is the number of cards in their hand. If they don't, they can't attack you this combat.