I feel that since the newest pack release, replacing Red eyes meteor dragon and meteor dragon with Black skull dragon and summoned skull are much better choices, because summoned skull is an amazing 6 star monster and both are much more accessable, as super rares in a mini pack rather than an ultra rare in a full pack.
Black Meteor is way better than Black Skull. Even their advanced forms tell the same, however, I still say there is no harm in having all 3 dragons (2 meteor, 1 Thunder, &2 skulls)
Considering online duels are full of position changing cards, Black Skull Dragon (2500 defence) is quite a bit better than Red Eyes Meteor Dragon (2000 defence) that can be defeated by a 4* monster + equip card.
But you must also consider...that this is an Auto-Duel deck. Trying to apply competitive notations to it immediately makes any point made very flawed. If you want to use them for PvP, don't follow this recipe and make your own. -_-
Nelp
Daemon Blitzkrieg
