Threaten effects, or effects that temporarily steal opposing creatures, aren't super popular in Commander, though the equation certainly changes when that threat's attached to a 10/10 and also morphs the 'borrowed' creature into an annihilating monster for the turn
It seems like for Challenge events specifically, new sets will become legal 1 week after mass (retail) release
1 Nashi, Moon Sage's Scion Is A Potent Rat Ninja Creature Nashi, Moon Sage's Scion is a rat ninja that can ninjutsu into play at the cost of three generic mana and one black mana
9 Brotherhood Regalia (Foil Etched) - $17.60 Base Version Price: 6.78 An Equipment that gives a lot of abilities, Brotherhood Regalia does a lot for two mana
But have you ever wondered what the most powerful payoffs for this strategy are
In The Rescuers, she only cares about the Devils Eye diamond, which there isnt an item for yet