Maybe you saw Number C105: Battlin’ Boxer Comet Cestus in action at the Lord of the Tachyon Galaxy Sneak Peek. Or maybe you saw all the awesome new “CXyz” monsters on the preview page for the upcoming Number Hunters set! But no matter which “Chaos Xyz” monsters you’re looking forward to, there’s one card you’ll absolutely need if you want to unleash their might: Rank-Up-Magic Barian’s Force!

Rank-Up-Magic Barian’s Force lets you select one of your Xyz Monsters to upgrade into a “Number C” or “CXyz” monster that is the same Type as the selected monster and that is one rank higher than it. The monster you upgrade and all Xyz Materials attached to that monster become Xyz Materials on your new chaos-powered monster. But there’s more! After the Summon, Barian’s Force lets you swipe an Xyz Material from an opponent’s monster and attach it to your new creation. This happens while Rank-Up-Magic Barian’s Force is still resolving, so your opponent can’t use any Traps like Bottomless Trap Hole or Torrential Tribute. It’s a fast, safe, and nasty way to promote an ordinary Xyz Monster into an extraordinary one!

There’s one “Number C” monster and one “CXyz” monster in Lord of the Tachyon Galaxy. Both of these monsters can be Summoned without Rank-Up-Magic Barian’s Force, but doing so is tough, and won’t bring out their full potential. Luckily, Barian’s Force gives you a shortcut to Summon them with maximum power.

Number C105: Battlin’ Boxer Comet Cestus is a Rank 5 Warrior. Whenever it destroys an opponent’s monster in battle and sends it to the Graveyard, your opponent loses Life Points equal to half of his destroyed monster’s Attack Points. But Comet Cestus’s true power is unleashed when it has the Rank 4 Warrior Number 105: Battlin’ Boxer Star Cestus as an Xyz Material; and you can only accomplish that by upgrading Star Cestus with Rank-Up-Magic Barian’s Force.

While Comet Cestus has Star Cestus attached to it as an Xyz Material, it can also automatically destroy an opponent’s monster once per turn and inflict damage to your opponent equal to the destroyed monster’s current Attack Points ! But unlike the similar Volcasaurus, you can still attack directly with Comet Cestus, it’s bigger than Gaia Dragon the Thunder Charger, and if you attack a monster you can inflict even more damage with Comet Cestus’ first effect. It’s like scoring a first round knockout!

While you’ll usually want to rank-up Number 105: Battlin’ Boxer Star Cestus as quickly as possible to ensure maximum chaos and destruction, other upgradeable Xyz Monsters might work best if you use all of their materials first. Fairy Cheer Girl lets you detach an Xyz Material each turn to draw an extra card. You’ll want to get everything you can out of it before upgrading to CXyz Dark Fairy Cheer Girl.

Regardless of which Xyz Materials are attached to her, CXyz Dark Fairy Cheer Girl has 2500 ATK and an effect that draws you a card whenever she’s sent from the field to the Graveyard. While Fairy Cheer Girl is attached to CXyz Dark Fairy Cheer Girl as an Xyz Material, Dark Fairy Cheer Girl can also give up an Xyz Material to inflict 400 points of damage to your opponent for each card in your hand whenever she destroys an opponent’s monster. When everything is said and done, the tandem of Fairy Cheer Girl and CXyz Dark Fairy Cheer Girl will have drawn you 3 cards and probably destroyed an enemy monster and inflicted a fair amount of damage, since you already drew 4 cards over two turns between Fairy Cheer Girl and your regular draws for the tun!

Barian’s Force is extra strong when you use it to unlock the bonus powers of your “Number C” or “Cxyz” monsters; but there are lots of times you may want to upgrade an Xyz Monster into a stronger monster even if you’re not getting any Xyz-specific bonus effects. For example, you may want to use it to turn your Rank 3 Warrior M-X-Saber Invoker into a Rank 4 Warrior Number C39: Utopia Ray, or turn your Rank 3 Sea-Serpent Mermail Abysstrite into a Rank 4 Sea-Serpent Number C32: Shark Drake Veiss.

Rank-Up-Magic Barian’s Force is a useful card for Summoning strong Xyz Monsters. There are only a handful of “Chaos Xyz” monsters right now, but the Barian invasion will begin in earnest this summer when Number Hunters hits! You can get your copies of Rank-Up-Magic Barian’s Force when Lord of the Tachyon Galaxy releases this Friday!