Karn and Etched Champion allow you to beat hands full of removal spells and dodge most of the best hate against you, such as Kolaghans Command and Electrolyze
However, to get an additional combat it has to deal combat damage to a player and then it cant attack the same player twice
The inexpensive payment of a single mana for putting a +1/+1 counter on Isu means we can get some commander damage kill action going
There is a short synopsis of the current story at the front of the rulebook , but even if someone were to skip over that, they wouldn't be at much disadvantage
Even with things like Myr Enforcer in the deck this is still great in most matchups if you can reliably play it
But one deck in a single format is not enough to make any card relevant on the market, so Nashi, Moon Sage's Scion will steadily dwindle in price to about $3-4 a piece