Board Thread:General Discussion/@comment-30093591-20170204215304/@comment-31183613-20170204222247

For some cards, there is a "upgraded" version of them

Baby Dragon - Inferno Dragon

Dark Prince - Prince

Archers - Princess

Minions - Mega Minion

Barbs - Elite Barbs

Tesla - Sparky

Skeleton army - Graveyard

And the list continues