Alongside payoffs for counters, you can quickly make your Army the best creature on the battlefield
Draftsim's own Draft simulator has a Sealed option to let you crack open a Sealed pool and get a glimpse of what cards you can expect during your prerelease
Kosei, Penitent Warlord makes up for that when you assemble a trio of mods onto it: an aura, an equipment, and a counter (+1/+1, -1/-1, keyword, whatever)
For any collector, it's a dream to own a card that can pay for an entire mortgage with its value alone
That means stealing the best tool from the yard and still swinging as a 4/4
The only downside with this card is that it costs nine mana, which isnt cheap at all