Custom cards allow players to build fully functional draft environments without needing to repeatedly shuffle and transport valuable originals
They only become better and better when you have multiple lands that are worth searching out from the 99
It was used it MTGs early years to play 3- and 4-MV cards ahead of time, but now the main application is in storm engines to generate enough mana to play a card like Ad Nauseam or Dark Petition
Now, if the ink price is right, you can move your warriors to a variety of recognizable spots from the Disney stable, like Skull Rock or Treasure Planet's RLS Legacy
The best overall helper and payoff card though is Barbarian Class
Equip only as a sorcery.) Artifact - Equipment Ramp (CTRL to add secondary) Recursion Daretti, Scrap Savant +2: Discard up to two cards, then draw that many cards