A Food token is a colorless artifact token with "2, T, Sacrifice this artifact: You gain 3 life." Eating, er
The more of those kinds of cards you have, the more you can play three colors
Of the 14 cards in each play booster, 1-4 will be "Rare" or better, and could even be a Special Guest Mythic Rare
(This usually only happens once per turn, but effects like that of All-Out Assault's last ability might cause it to happen more than once.) This ability will trigger even if Dalkovan Encampment is no longer on the battlefield
The only fix I can think of is making your own lords, and making sure those lords are playable on their own
Persist Resurrect your best creature Persist is a useful keyword that brings a creature back from death with a -1/-1 counter on them as long as they dont have a -1/-1 counter on them