Here's how it works:
Card Effect:
* Requirement: You must control a "Number" monster.
* Effect: Special Summon 1 "Number" monster from your Extra Deck, whose Rank is equal to the Rank of the "Number" monster you control + 1, by detaching 1 Xyz Material from the "Number" monster you control.
How to use Rank-Up-Magic Limited Barian Force:
1. Have a "Number" Monster on the Field: You need a "Number" monster on your field to activate the card. This means a monster with a "Number" in its name.
2. Choose a "Number" Monster from Your Extra Deck: Look at your Extra Deck and choose a "Number" monster that has a Rank one higher than the "Number" monster you control.
3. Detach an Xyz Material: Choose one Xyz Material from your "Number" monster on the field and detach it. This removes the Xyz Material from your monster and sends it to the graveyard.
4. Special Summon the Chosen "Number" Monster: After detaching the Xyz Material, you can Special Summon the chosen "Number" monster from your Extra Deck. This means you can put it onto the field without using your Normal Summon.
Important Notes:
* "Number" Monster Restriction: You can only use this card to summon "Number" monsters.
* Rank Increase: You must choose a "Number" monster with a Rank one higher than your current "Number" monster.
* Xyz Material Requirement: You must detach an Xyz Material from your "Number" monster to activate the card.
* Special Summon: This card allows you to "Special Summon" a monster, which means you don't use your Normal Summon for the turn.
Example:
Let's say you control "Number 101: Silent Honor ARK" (Rank 4). You can use "Rank-Up-Magic Limited Barian Force" to summon "Number 107: Galaxy-Eyes Tachyon Dragon" (Rank 5) from your Extra Deck. You would detach one Xyz Material from "Number 101: Silent Honor ARK" and then Special Summon "Number 107: Galaxy-Eyes Tachyon Dragon" to the field.
Let me know if you have any more questions about "Rank-Up-Magic Limited Barian Force" or any other Yu-Gi-Oh! cards!