Arena Rector [Battlebond] Scars of Mirrodin Promos Scholars say that arbiters exist

Scholars say that arbiters exist on every world

Set: Weatherlight Type: Land Rare Cost: If Lotus Vale would enter the battlefield

Set: Weatherlight Type: Creature — Human Rare Cost: {2}{W} At the beginning of your upkeep

return to its owner's hand each creature that player controls with power greater than the number of cards in their hand

If you control an Urza's Mine and an Urza's Power-Plant

Arena Rector [Battlebond] Scars of Mirrodin Promos Scholars say that arbiters existSet: Battlebond Type: Creature Human Cleric Mythic Cost: {3}{W} When Arena Rector dies, you may exile it. If you do, search your library for a planeswalker card, put it onto the battlefield, then shuffle your library. "I see something special in youa bright ember that yearns to dance among the stars."