Best spells and decks for some arenas?


Some thoughts on my deck? I usually use magnus on forsaken valley arenas cuz i find him better on those maps than eiskalt or malik, otherwise i just use eiskalt to slow down boss and win this way against my opponents...

Also I have a question about reinforcements/fallen order and fireball/lightning, which are better considering dmg values and stats?

Thanks for your thoughts.

Btw Im in diamond league \~1500 medals