IMHO while almost any Caves 26 is really hard to wipe, that very last *Snor* pirate pig is quite elementay to defeat.
his own weakness is the 3 turns counter of the defensive skill. you can both reset it or stun him almost forever, he is not even immune to negative effects like almost any other pirate pig.
Any Cave Boss that could bè singlehandly slayed by a single strong strategy is not challenging at all’.
My favourite and the most difficult to defeat is, even now, the MachineMonsterBoss of Cave 23. Grazie can’t bè catched off guard easily and both him and all’ the other pigs all’ together are far More challenging that the last two ones.
On the other hand, AlphaPig is cool, because It let me “farm” through anche High level cave without boring me at all’ :-)