yugioh master duel war rock deck This madlad managed to reach D1 with in the tear 0 environment War Rock Deck Breakdown |

The Eldrazi probably speak for themselves

It is most akin to countermagic in that it can deal with anything, it is one of the few things than can stop instants and sorceries from happening and it suffers the drawback of being time critical

Smprattes video sums it up better as well, but if I could add my own opinion here, it would be that the market today is too optimized to be able to trust that packs which were sealed 20+ years ago now were not already weighed, which would then hurt both seller and buyer of said item down the road when looking to move the product

You can sacrifice a high-power creature, generate a massive burst of mana, and then dump it into his second ability, paying six generic mana to play the top card of your opponents libraries for free

Firstly, of course, it's a grass type, able to attack into Darkrai for an extra 20 damage a turn