As for King s Activate: Main effect, we get to ramp 1 rested and 1 Active Don, perfect for mitigating our deramp effects, and the Active Don we gain can be used offensively to power up our attacks or banked for our Counter events
That's nasty good in all of the places, like in tokens matter with Green dorks, aggro to refill your hand, or landfall making dorks like Insect tokens from Scute Swarm to draw a ton cards in decks with just Green or other colors like Simic Landfall or Selesnya Tokens
In addition to the transforming double faced cards, there are also modal double faced cards
As it turned out, I was completely wrong, and the turn-three Batterskull I was fearing so much doesnt ever happen anymore as most of the time the card is used to fetch Colossal Hammer, and even fetching Kaldra Compleat is often not powerful enough for the format as the card sees little play outside of Hammer Time