I like the new system overall.

As pointed out by other the rating systems needs updated before this.
The cost to play in the higher leagues is already well over what can be earned by rewards so the cost for refill just make it worst.
Bronze and silver level accounts will be able to easily farm soulbounds card while at a far cheaper price then the higher league. Even with the multiplier chests usually only have 1 card in them.
I feel like overall the DEC cost for recharges need to be squished together bring the lower levels up some and the higher leagues down some.