She’s become a priority instantly.
Not so much for herself alone - as a standalone taunter, BK is better…
But she should add some really interesting synergies with Puss in my minion team, plus her minions being high attack should make her a doubly useful addition (Freya boost works best on higher damage minions for obvious reasons).
When you have BK and Wilbur, you can make a deadly team with AoE (G.Kong works great for this, Anzogh would give a more balanced option).
All these hero’s are average mana and ready to fire together, but you want to fire Wilbur and BK, wait two turns (provoking enemies to attack) whilst that beserk ratchets up to +105/125/145% attack and then fire your AoE…
Very little survives this combo - the hits can get up around 1k to all enemies (and that’s without boatloads of emblems on Kong, as obviously BK gets first dibs).
Black Knight and Queen of Hearts walk into a bar. Black Knight steals Queen’s booze. Queen orders his hand to be cut off. Knight responds with ‘Tis but a scratch’.
Both are tanks and I think BK is a bit better, so probably you want to save rings to some hero with different role and mechanics.
Unless you’re building a minion team…
QoH + Puss + Freya has some serious synergies going on (Heal over Time, +atk, +def, +minion attack on +30% atk minions, taunt).
Otherwise sure, BK is better and easier to build around… For deep benches, you may still want both.
Black Knight and Queen of Hearts walk into a bar. The barman orders them both out immediately. “Why don’t you let them in?” asks a bystander. “Ah, those two, they just come in here every night and taunt everybody.”