I do think that the deck is a little short on sweepers for opposing mana-creature decks to enable these Armageddons to win games, though it is possible the plan in those matchups should be different
It has convoke and delve, which means that the cost needs to be paid by at least two green/black creatures and five cards from your graveyard
This creates a constant "stadium war," where players vie to control the game's environment
Necropotence essentially, at the very low cost of 'cards that are discarded get exiled', swaps your regular draw phase for 'pay X life, draw X cards next turn'
$11.59 $8.37 $111.59 Melmetal VMAX (Secret) is the metallic titan you didnt know you needed
Even in your deck, the card stock issue can be marginal compared to something like extreme curling on foils at a casual table