Tower tactics.

Aha, Lider1 has finally decided to "bring everyone into line"! :) Well, then tell me: why did Dirty player start the "First Snow" tournament now? You know the saying: "If you don't like cats, it means you don't know how to cook them!";)
Znich, please learn how to use the message editor: it's not difficult, but it's very useful to be able to see quotes, etc., in the text. Besides, the editors of most forums are very similar.

There is often no time for blindness

But that's a shame! I'm telling you: sometimes Blindness can even play a decisive role if the opponent underestimates your cunning.;)

I have never seen anyone spend a turn to cast a random spell

I suspect you still have a lot to learn.;) Just one master djinn can cast spells, several times per battle, without consuming the hero's mana(!), in addition to the main spells, and can significantly strengthen one or more of its stacks.

and the same to you

Thank you for the kind words! I'm continuing right now, and I'm sure I'll learn something new.:)