First off, I'll just run through all the cards and their basic uses: Red-Eyes Darkness Metal Dragon - Pretty much standard at this point in every competitive dragon deck, this guy has a whoopin' 2800 attack and an effect that's even better
As the September 16 launch approaches, more information will likely emerge through official trailers, promotional campaigns, and retailer announcements
If this card is revealed by the Effect of a Monster
Mementotlan Goblin X DARK Level 1 [ Fiend / Effect ] ATK 400 DEF 400 During the Main Phase, if you control "Mementoal Tecuhtlica - Combined Creation" (Quick Effect): You can discard this card
This means you can cast only enough rats to deal lethal damage on the following turn and leave the rest in your deck in case your creatures are wiped out
If you play it early it will definitely build up counters and then reanimate something at some point, but if you get it in the mid to late game, it is likely to be a little too slow to actually do anything, and thats a huge downside This is another bomb planeswalker