Rather than making a baddy impossible to hit, consider giving it mega-hit points.
Super hard to hit leads to great player frustration. Allowing them to do damage leads to a sense of accomplishment. another variation of this would be to give the bad guy a forcefield that shows damage.You could also give them a mastermind ability that sluffs the damage of to minions who should be easy to kill.Once in a while a super high to hit encounter is ok ,but it should be few and far between.
Your mileage may vary
The size of a hippo, fast as a Pegasus, ferocious as a wolverine ,but man do the prime ribs off of it taste FANTASTIC
tuck a small mammel into this 2' box,carry it under your left arm and the little creature takes some damage for ya and some spells cast on you are misdirected to it. If you do't mind the muffled screams!
This hedonistic dragon,sets up camp in a cities alley exchanging his hot tasty breath weapon for strong drink.
Named for the Godking, this beetle is about 2 inches long w/the st of 2 men,step on it and get flipped in the air.
Useful component in strength potions.
The thieves guild of Mysantia has paid the stone masons guild to put a particular pattern into the stone of new multi story construction.
A small bonus to the climb skill is the result..
This dark red leopard travels in packs of 3-5 and is amazing at tactics, They set cunning ambushes and can lure adventures to other dangers to soften them up.
This evil long sword has minor bonuses vs the unarmed and unarmored,Moderate bonus vrs the sitting and prone
major bonus vs helpless, handicapped and children.
This magic greatsword has a minimal effect verses the unarmored but becomes more powerful vrs chain, then plate.Monsters
are mostly considered hide but some like dragons would be plate
What happens when a barbarian takes the most powerful magic drug known.He creates his versioin of a mage. All stats are minimum
except for INT ,which is maximum.All he can do is throw fireballs,lots and lots of fireballs.He's also a great drinking buddy, but is he REAL?
This painting was thought to be a myth, in reality it is worth a kingdom.How do you sell something worth Millions of coins?Plus who will try to take it?
Believable magic, like ordinary physicis, operates according to some invariable laws that always result in some kind of cost or "bounce back". The grater the magic, the more it should cost the character physically, emotionally, and spiritually.