Isn't that an incredibly fitting story moment for a Blood Moon-type effect
However, the increase in attack power is also not good, so you need to exclude at least 12-13 monsters to reach 2400-2500, which is the average level of level 6
The counter option is nice in Soldier Typal, or just as a bonus if you have your Commander out
I would switch the ATK and DEF maybe
It also takes up one of those few precious slots you can afford to have a non ramp, non threat card in
(For a deeper look at some of the best decks of that time period, Randy Buehler took a look with his article "Throwback Standard Gauntlet 7: Worldwake ".) While we didn't end up hitting the card where Standard would have wanted it to be for the best Standard environment long term, Jace certainly became even more iconic after Jace, the Mind Sculptor was introduced and has proven to be a format staple for many of our older formats