This could make or break Steemmonsters. I do think that the second will be the case. Steemmonsters whales do have more than 1 maxed out sets. They could even rent them out and pushing another player high up the ranks in the game.

For all I know, card delegation will work only with 1 card at a time... or at least, that's the last thing I heard. I don't really see the use of that, but I'm probably missing something.

What you say is true, I think. But I have a 'but'... :0)

My highest deck is level 6. I've already invested more than I initially planned, and I can't or won't spend the money it takes to bring it up to level 7 (rare summoners level). I do have the dragons maxed, but I hardly play those.

This level 6 deck brings me to Diamond 1 in the daily ranking. Currently, I'm in 93rd place in the ranking.

Hopefully soon, I will get the opportunity to play someone else's maxed deck. Not because of card delegation, but because I will get the posting key.

That account is currently in 26th place in the ranking. The fact that I will start playing it, will probably make it drop in ranking, because I already realized that playing the game with maxed cards is completely different from playing it at level 4 or 6. I will have to rethink every strategy I have been working on for months. And it took me months to become good enough to win Bronze and Silver level tourneys - even though my deck is gold level, I haven't won anything in gold level tournaments yet.

I'm just trying to say... it's not because you have the cards that you are by definition good enough to either win tournaments or get high up in the ranking.