Great question!

I can't give you a concise answer but one of the other considerations I had was the recent change in how Ranked Battles are done.

Renting for Bronze doesn't really exist any more since there are no Card Level Caps.

Currently, the "junk" Legendary cards in CL rent for .1 DEC for L1 and top out at .49 for Grandmaster Rathe.

However, the "junk" Legendary cards start at 1.7 DEC and go all the way up to 85 DEC for Immortalis.

With that being said, the Top CL Legendaries would effectively "double" in rental price.

1. This will make the people who are renting those cards happy
2. It costs a player .5 DEC more per day or 1 DEC for a two day rental.

The cost to a Player who rents one of these cards is 1 additional DEC or 1/10 of a penny at peg, over two days.

Similarly, the CL Epics:

All L1 Epics rent for .1 DEC but the L2's (Bronze) range from .1 DEC for the trash to .585 for Nerissa.

However, you can rent a L4 Gem Meteor or Insidious Warlock for just under 1 DEC currently...

Effectively, what I believe will happen is players will be able to rent the "junk" Epics, like Insidious Warlock or Gem Meteor at a higher card level than the more expensive , Playable "Bronze" cards, for the same 1 DEC price as the cards like a L2 Nerissa...

Ultimately, I believe this will benefit the players renting those cards because they will get more "bang for their buck" since we no longer have Card Level Caps tiered by League and the L4 Gem Meteor will be usable alongside the L2 Nerissa in Bronze :)

Since I believe it will benefit them to do so and also cost Bots 10x more to rent those L1 cheap cards, I believe it to be a win-win-win solution all around!

More profit for those renting out their cards
Better cards for the money for the players renting them in
10x more costly for Bots to operate

Thank you for asking that question! I hope this reply helps :)