Benalish Hero (Retro) [30th Anniversary Edition] TG18 Set: HeartGold & SoulSilver: Triumphant

Set: HeartGold & SoulSilver: Triumphant Type: Psychic Rarity: Uncommon Retreat cost: 0

but I believe a more mundane power source might suffice

Set: Diamond & Pearl: Majestic Dawn Type: Metal Rarity: Holo Rare Retreat cost: Colorless

Whenever an opponent taps a land for mana

Benalish Hero (Retro) [30th Anniversary Edition] TG18 Set: HeartGold & SoulSilver: TriumphantSet: 30th Anniversary Edition Type: Creature Human Soldier Rarity: Common Cost: {W} Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.) Benalia has a complex caste system that