Damage is typically tracked using damage counters (each counter often representing 10 damage), which remain on the Pokmon until healed or until the Pokmon is knocked out
Doubling Season, Anointed Procession, and Parallel Lives are common in these decks, with the Trostani, Selesnyas Voice, Emmara, Soul of the Accord, or Rhys the Redeemed at the helm
Another, less successful, idea that I used the 'test deck' feature for during City Championships was an Archie's Primal Kyogre-EX deck
Equip 2 If multiple effects say that a creature doesnt untap during your next untap step, those effects all apply during one untap step
When it's all said and done, we'll probably have no more than three new cards that have any real value, with somewhere in the $5 range being the cap, and most of the new cards will be bulk