Can anyone help me make a naya del for post rotation I haven't made a serious midrange deck in a long time and need help
Three colors are going to be more difficult to run without the assistance of the check lands. No {thragtusk}, {restoration angel} or {huntmaster of the fells} will also effect these colors.
If you really want to do it though, look at some blood rush options with {loxodon smiter} or {voice of resurgence}. Using {ghor clan Rampager}. That would be a start at least.
I was also thinking assemble the legion
Definitely a great card, honestly forgot about it.
{Boros Reckoner}, {Ogre Battledriver}, {Scavenging Ooze}, {Elvish Mystic}, {Kalonian Hydra}, {Aurelia, the Warleader} all good places to start with creatures for naya