Let's try to quantify the impact these two cards have on the overall price of the format
Ace x Charizard V
Example: recently Wizards of the Coast has started printing ultra-cool art cards. One whole side is filled with a piece of card art, and the reverse includes a few details about the piece
Buy 10 for $1.33 /Pack and save 16% Buy 50 for $1.19 /Pack and save 25% These are designed to fit inside standard card sized (2 1/2 x 3 1/2 inch) 9-pocket pages, screw-downs, magnetics, snaps, toploaders, and storage boxes
Players can move freely around these areas, and a different scenario will unfold dependent on which character the user opts for, and the story will evolve organically based on decisions the player makes
Being more challenging to cast sounds like a downside, but Ive always maintained that it doesnt really matter for spells with higher mana values