I am giving my first set of tonics to Lianna. I got her when the Hatter was at 3/1. I still need one tonic, though, so Hatter is getting leveled to 3/70 before I start leveling Lianna.
The Hatter is great and can be a game changer with the right opponents and a favorable board. He hits first and takes the damage before he steals. His HP needs to be maxed or high before he hits. He usually needs healing immediately after hitting heroes with riposte. He can hit 3 opponents with riposte buffs and still bring back the buffs if his HP is high. He only brings back what’s left on the buff (might just be one turn). His application of the buffs can be comical (e.g. one ally gets all the buffs).
I like to use him with 2 healers (Mel and BT), or I use him in a color stack with Mel and another green. He is good with Mel because they are in sync. You just can’t fire Mel first.
If you decide to level him, have fun. Since he is unpredictable on defense, you don’t see him in raids and wars. He’s good to have on your roster though.