He ask about
units Sandsai and yes they existing in this game, units that you pick up instantly when skip others until you have no others choice.
Lets started:
Horseman aka cavalry aka champion (for homm3 fans
) - really do i need explain?
Alchemist - even if poison is worst damage type (plants, undeads) they still can attack up to 3 units in row and have nice bombs even if poison bomb has low damage, cons are their leadership cost.
Evil Beholders - no need to explain.
Inquisitor - great against undead and support, just better version of priest.
Archmage - well i don't like them but that will not change that they have usefull shield, telekineses so your knights can get one more target for they circle attack and with last thing they can even do some damage and paralyze (reduce to 1ap).
Royal Snakes - seriously, no need to explain.
Robbers and Marauders - great for safe attacks and treasures.
See dogs - worst version of helldogs but still great to use.
All Bears - great units that not only can tank but dish out lots of damage.
Shamans - no comments
Necromancers - too much good thing in one place.
Driads and all sprites with no retaliation - cannot cover this
All Dragons - but especially emerald.
Giant - aoe damage every second turn, nice hp.
Cyclop - nice resistance, great abilities, full shooter.
Royal Thorns - you can only wish you find them :/
All demons army except Archdemons are awesome.
Controversial - Black and normal Knights, Black and White Unicorns, griffins, Both Elves shooters, Cursed Ghosts and Vampires Brotherhood plus skeleton archers this units can be good with some item, talents, spells help.
Did i miss something? But i don't know what devs pick up as best sorry :/.