Holy carved are capable of summon Thunder end Dragon and others Great XYZ monsters. In fact, it looks like an excellent meta deck, but not like we have seen before.
Holy carved is a clearly a Combo Deck since most of the effects active tributing or in sinergy with other monster. A combo strategy at this point of the game is imposible, as I already explain on previous posts. The game right now is based on Boss and Floaters. However, Holy carveds solve that problem because they are not only a combo strategy, they are also heavy beater monsters with drawback so you will be force to go for the combo, or wait behind a strong monster. Holy carved is the break point between Combo and single-card play. This also give us a few more conclusion:
1.- Holy Carved are strong beaters with drawbacks. So if you try to stop them with veiler, you will eliminate the drawback, and will potentially be swarm by the opponent.
2.- Holy Carved can play Skill drain. At this point, there are two meta decks capable of maindecking Skill drain (holy carved and Dark World). So, the presence of Heavy storm and MST at 3 is key to stabilize the Metagame.