Hero XP
This is a separate discussion of Hero XP.
Kerridoc is a huge fan of leveling with matching colors. Lots of benefits.
People leveling HotM in one day have saved for months.
Click for boring part
Falcon and Jackal ( together they fight crime)
Actually Joon >> Jackal >> Wu Kong on defense, but all three are better for attacking. Rumored Ranvir is a yellow 5* HotM Wu Kong that might be better on defense than these three ( but is still mostly attack oriented).
Boldtusk >> Falcon >> Wilbur on defense but they make an insanely powerful 3 red stack for attacking. Revive is insanely good with Boldtusk, Protect is insanely good with with Falcon and Withstand is okay with Wilbur.
Wu Kong 4* 3.60
Wu Kong actually has a very nice attack stat at 4* 3.60 for matching/ tile/ board damage.
Self Heal
Self heal really needs to be buffed to 90% similar to 1/8 Aegir or 100% similar to 8/8 Aegir.
Buffy
Only recently got Melia.
Gunnar + Brienne seems awesome until you realize Gunnar is slow mana speed. Bump him to average and it would be nice.
Recovering Hero XP
Good points.
You lose 90% of Hero XP and all ascension items when you use a leveled hero to level another hero.
I still have my Graymane and Friar Tuck 3* 3.50 for these reasons but I am E2P so I have roster space.