We're coming to the end of Final Fantasy spoiler season, but Wizards of the Coast is still delivering up its daily dose of fresh MTG card spoilers
Five life and five mana for five cards is decent but it is inflexible and not a better tool than Skeletal Scrying, Necropotence, Necrology, Yawgmoth's Agenda or any of the top end alternatives really
I have no idea if the resource trays work with the upgraded resources, but there is space for all the cardboard tokens in only one of the boxes, so there should be some room left at least
The LEGEND mechanic was rarely used competitively, most Legendary Pokmon during the Diamond & Pearl era were laughable (unless, of course, they could Level Up), and Legendary Pokmon in the ex series days were hit or miss
Also this assumes you are not using dividers to sort the cards