I'm not sure it's worth transitioning to this sort of build, since despite superb options like Galvanic Blast being available to us without Chalice, we still probably don't want them over the nuts and bolts that make improvise tick
However, one mana is a very low cost to have access to a wide toolbox of creatures of any color, with no cost restrictions, and any archetype with creature-based combos and/or that wants to take advantage of more of the famous hatebears can take advantage of this spell in some way
If you decided to just go with this Tier S and play a tournament, dont get very frustrated when you face a lot of counters during your rounds
Grain plays a role as well, this is the direction that the paper fibers are laid during manufacture
It's a little at odds with itself for wanting to go wide, but also promoting one strong attacker
Locke, Treasure Hunter Locke, Treasure Hunters evasion makes it a considerable threat in the command zone, and I love a cheap theft card