Remathilis
Legend
I have not designed some high level exploits but posted my WL. There are high level action surge type things for the entire group.
The inspiring ne might be a mix of the 4E one+ 3.5 Marshal basically powerful auras and 4E type powers/ exploits.
But do those abilities equal the opportunity cost of a spellcaster in that role?
Take raising the dead. Clerics and Bards get Raise Dead as a 5th level spell. Druids get Reincarnate. Both of those spells will bring a fallen ally back to life hours or days later. What power can a Warlord have that possibly equals that and doesn't either a.) re-write reality (turns out Bob wasn't dead after all...) or b.) Isn't magic? And if he can't bring the dead back, why should someone play him over a druid, bard, or cleric?
I mean, buffing is fine and all, but I certainly wouldn't want a Warlord over a Cleric, Druid or Bard in my party if it means lacking access to Lesser/Greater Restoration, or Raise Dead/Reincarnate. Take a look at those three classes spell lists and find the overlaps; THOSE are the effects a Warlord MUST mimic if he is to hang with them. That is what the Leader/Healer/Support role looks like in 5e.