Not necessarily power wise but just having that option in mono white voltron for example is HUGE DJ_Red_Lantern, via r/MagicTCG Genji Glove is also part of a very small group of Equipment that grants Double Strike
Something like The Queen's Castle - Mirror Chamber works great with Jim, getting the location out for free and setting you up for an extra draw next turn
The face of the archetype is usually Selenia, Dark Angel, which I've written a primer about a while back
Its a source of spells to cast from exile for Prosper, Tome-Bound, throws +1/+1 counters around for the likes of Shalai and Hallar, and filters through excess lands when flooding
Since it has such great Ixalan flavor, Im running it here
The first is that it enters the battlefield untapped, letting you use it right away, such that it only costs a virtual one mana to deploy provided you can make use of the mana it provides immediately