If you're worried about missing out on some snazzy Secret Lair cards, fear not
Card (Charlotte Pudding) FOIL NNO DON
We instead took a big swing with a different version of Arena Powered Cube during that season and delayed Planar Cube in the hope that it would be ready for Magic: The Gathering | Marvel Super Heroes
Basically, for a flashback card to be playable, the front half either has to be close to on-par for its effect, so the flashback aspect of the card is a bonus / afterthought, or the reward for getting the card in the graveyard is good enough that you don't mind building around a card that's not that great in your hand
Im leery of trying to put too many eggs in the basket of a mechanic that is likely to never reappear, but whats nice is that amass lords affect all zombie tokens, not just zombie army tokens, so they synergize with many cards from other sets
One card giving you the option of a second copy of your best creature late in the game versus a land early is absurd enough that this often makes the cut in my blue deck regardless of whether my strategy cares about clones