When all the cells with numbers are crossed out, you can extract the coveted amount from the piggy bank
increase the Level of this card by the Level of that monster, until the End Phase
For example, if an effect allows you to put a creature card from your graveyard onto the battlefield, you can put Disciple of Freyalise onto the battlefield
Extra Deck 1-3 Blue Eyes Twin Burst Dragon (Fusion) 1-2 Azure-Eyes Silver Dragon (Synchro) 1-2 Blue-Eyes Spirit Dragon (Synchro) 1 Vermillion Dragon Mech (Synchro) 1 Hieratic Sun Dragon Overlord of Heliopolis (Xyz) 1 Blue-Eyes Ultimate Dragon (Fusion Optional) 1 Michael, the Arch-Lightsworn (Synchro Optional) Lastly, lets talk about the Extra Deck, which, for the most part, is rather straight-forward
That said, this sword offers perhaps the best protection of any Mirran sword