Characters with Ward like Jetsam, Riffraff and Flotsam, Riffraff (if you have Jetsam in play) are particularly sticky , while Evasive characters like Don Karnage, Prince of Pirates and Wildcat, Mechanic can be hard for your opponent to remove
In Standard, frankly, Dark Confidant might not see play
Abilities typically target another card in play, or in a players hand, deck, or discard pile
Couple this with the ablity to move all damage and potentially send a character to the discard pile, and it's easy to see why it's so valuable
That puts a real floor under these cards compared to Enchanted prints of characters from sets that already have multiple versions
The thing is, if you have Basil in play, you dont really need this effect, meaning Honey Lemon might be of more use being added to the Inkwell than using her ability