For two mana, you get a blue Artifact that makes it so that all players have no maximum hand size
Old Gnawbone It is also massively formidable, as being able to gain Treasure tokens based on the damage dealt to any foe is a huge boost
Basically, the backup creature can either make itself bigger, or give its abilities to another creature until end of turn (and also make it bigger)
Once we have tokens we're going to pump them with cards like Jeskai Ascendancy, Surge to Victory, Warlord's Fury, and Balmor, Battlemage Captain, all while Narset pumps the team with prowess and casts additional spells from the graveyard
Look for print run numbers, like "1 2 3 4 5 6 7 8 9" or "9 8 7 6 5 4 3 2 1," on the copyright page