The typical Karakuri Decks weve seen generally hold back on their first turn, or kick out openings with multiple copies of Burei or Bureido
XYZ-Dragon Cannon X LIGHT Level 8 [ MachineFusionEffect ] ATK 2800 DEF 2600 "X-Head Cannon" + "Y-Dragon Head" + "Z-Metal Tank" Must first be Special Summoned (from your Extra Deck) by banishing the above cards you control
Trading card binder inside is lined with soft felt, All-round protection for your trading cards
Then since Ur-Dragon is now Skithiryx pumped up by +6/+0 when it was Moltensteel Dragon, you can swing with Skithiryx as a 10/6 to deal 10 infect to your opponent, which causes them to lose the game
It comes with a cost reduction mechanic that requires you to take +1/+1 counters off creatures you control, so you're rarely paying anything near the full 12 mana to cast it
If a spell you're casting with escape has an additional cost of discarding cards or sacrificing permanents, you may exile cards discarded or sacrificed this way to pay that part of its escape cost