Just game restictions, old spells often work strange way, for example Far Sight, cards drawn by this spell are signed as "Created by: Far Sight", but this spell only draws cards, it doesn't discover them.
Ok so, from my understanding, bitht Brawl and Soul Mirror are actually "targeted" as in they need to target minions although not directly trough you, the latter is easier to understand, if there are no enemy minions Soul Mirror can't target any minion and therefore can't be casted; Brawl on the other hand I think is written weirdly and it required to have at least more than one minion to target, and then chose one to be the winner, so if there's only one it can't target multiple minions to chose from.
Dark Bargain will work with only 1 minion because it doesn't target any minions to destroy but just need at least one.
Think about this: Spells have an effect and requirements for those effects, mainly if the spells targets something or not, even then some spells don't explicitly say you need to target something they may need to target themselves, that's why Frost Nova can be casted with no board, it affects all enemy minions, but all can be zero, meanwhile Flurry needs at least one minion to work. Sorry if it's convoluted but they sure as hell didn't explain it correctly
There are plenty more examples. Why does this matter - well sometimes you need to clear hand space, test counterspell etc?
On a similar vein - can you cast a card like Dark Bargain if there aren't two minions for it to target?
P.s obviously targeted spells aren't up for consideration in all of this.
But Brawl in a way is a targeted spell, it is targeting one minion to survive. Things like Flamestrike are just dealing damage and not specifically targeting a certain minion. I'd say the general rule is that if a spell has a target requirement that includes at least one minion, you can't cast it until there are minions in play.
If I remember right, there were times when you were unable to cast Cleave and Forked Lightning without at least two enemy minions. This is a little bit another topic, but shows, that there are restrictions - and sometimes they get changed.
For example - I cant cast Brawl if there is only 1 minion (or no minions) and I cant cast Soul Mirror if the opponent has no minions.
On the other hand I can cast Flamestrike or Frost Nova if there are no enemies.
There are plenty more examples. Why does this matter - well sometimes you need to clear hand space, test counterspell etc?
On a similar vein - can you cast a card like Dark Bargain if there aren't two minions for it to target?
P.s obviously targeted spells aren't up for consideration in all of this.
Just game restictions, old spells often work strange way, for example Far Sight, cards drawn by this spell are signed as "Created by: Far Sight", but this spell only draws cards, it doesn't discover them.
Ok so, from my understanding, bitht Brawl and Soul Mirror are actually "targeted" as in they need to target minions although not directly trough you, the latter is easier to understand, if there are no enemy minions Soul Mirror can't target any minion and therefore can't be casted; Brawl on the other hand I think is written weirdly and it required to have at least more than one minion to target, and then chose one to be the winner, so if there's only one it can't target multiple minions to chose from.
Dark Bargain will work with only 1 minion because it doesn't target any minions to destroy but just need at least one.
Think about this: Spells have an effect and requirements for those effects, mainly if the spells targets something or not, even then some spells don't explicitly say you need to target something they may need to target themselves, that's why Frost Nova can be casted with no board, it affects all enemy minions, but all can be zero, meanwhile Flurry needs at least one minion to work. Sorry if it's convoluted but they sure as hell didn't explain it correctly
And i don’t even play Paladins
But Brawl in a way is a targeted spell, it is targeting one minion to survive. Things like Flamestrike are just dealing damage and not specifically targeting a certain minion. I'd say the general rule is that if a spell has a target requirement that includes at least one minion, you can't cast it until there are minions in play.
If I remember right, there were times when you were unable to cast Cleave and Forked Lightning without at least two enemy minions. This is a little bit another topic, but shows, that there are restrictions - and sometimes they get changed.