Tough Cookie is even more flexible with the addition of its middle ability, which is useful for not just its own Food token, but any of the cheap artifacts found in Wilds of Eldraine , such as Prophetic Prism, Soul-Guide Lantern, Candy Trail, and Collector's Vault
Its slow and costs three colors, which are significant downsides, but Muldrotha could be good in the right deck
It's especially useful on lands, since it helps fight flooding by cashing in excess lands for different cards later in the game
It just about sums up my feeling about the card as well
Like many catch-up cards, however, Keeper of the Accords effectiveness directly scales with how many opponents are ahead of you, and can be an absolutely dead card if youre already winning
The warp ability adds flexibility, letting it reappear later for more value, and it pairs especially well with blink effects like Ephemerate to reuse the enter the battlefield trigger, and more importantly, make it stay for good instead of warping it out