What are the Lich's strengths? In my opinion, it's quite weak. The Royal Lich is probably the most useless Tier 5 unit – the only ranged attacker in the castle, and so weak... the cloud doesn't help much; the opponent won't always be clustered together!
The only one..., yes, it has a pretty good ability ;), it's somewhat reminiscent of a meteor shower :), but it doesn't affect its own units... Well, even if we don't consider the cloud, the Royal Lich is still stronger than the Fanatic, i.e., among ranged attackers, it's only weaker than Titans and Cyclops..., is that really "bad"?