Whenever Jareth blocks, it gets +7/+7 until end of turn.
: Jareth gains protection from the color of your choice until end of turn.
Lead with a mono-white midrange shell that ramps into Jareth, then turn him into a near-unkillable Voltron threat. Use his : protection ability and 5/5 stats to attack into anyone, blank removal and combat, and stack equipment/auras to deal commander damage. Grind out the table with white's superior board presence and recursion.
Jareth is extremely resilient: pay to dodge targeted removal, combat, and most blockers
Cheap mono-white commander damage clock that ignores ground stalls (+7/+7 on block walls the board)
Mono-white is consistent and budget-friendly with strong staples and easy mana
Doubles as a defensive anchor, making you a poor target for aggression
Mono-white lacks card draw and ramp compared to other colors
Vulnerable to board wipes, exile, sacrifice effects, and -X/-X that protection doesn't stop
Single-target Voltron is shut down by a timely blocker/fog or chump army
Limited interaction with the stack; struggles against fast combo decks
Smooths draws and fixes the typical mono-white card-disadvantage problem.
Add more free or repeatable protection (Mother of Runes, Giver of Runes) and evasion-granting swords to make Jareth lethal and untouchable. Improve the engine with Smothering Tithe, Land Tax, Esper Sentinel, and fast mana rocks (Sol Ring, mana vault-style ramp) so you cast Jareth early and reload. Round out with white's best interaction—Swords to Plowshares, Path to Exile, and board protection like Teferi's Protection or Heroic Intervention-style effects—to survive wraths.