These wizards have haste and are exiled at the beginning of the next end step, so you only get them for the turn, but many wizards have strong ETB's, from Bloodline Necromancer to Archaeomancer, making the extra token so useful
Well start with Modern, where Emry has the most options, and is the easiest to find uses for
A lot of the ramp is Creature based - Elf mana dorks like Elvish Mystic and Llanowar Elves
The fight is memorable for the scale of the foe, but also the fact that it likes to flee near the end of the battle, wasting players time and resources if they dont bring their heaviest attacks at just the right moment
The problem is as with all the other such creatures that you need to be all-in on the strategy and this may be respectable
Greater focus on Locations as a strategic element with more opportunities for Lore