Ley
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That's interesting. I'm hearing about this for the first time.
I think it depends on the players and how they agree. Playing with an ally always has its own nuances – and what difference does it make whose color the hero is playing under? You can take something and give it back, I guess? And if you don't give it back, are you really allies? :) In my opinion, you don't get any advantages in that case, so you can consider it a gimmick... That's my opinion.
What do you think, could this trick be used with a computer-controlled ally? Because if it works, it could be used in a blitz game...;)
"Единственное, что можно сказать с уверенностью об удаче - она изменит..."