Soulburner is built around a reincarnation strategy, meaning that you send your monsters to the Graveyard in order to summon another copy
With companies like TAG, maybe this changes over time but for now Black Labels have a massive premium due to the low population and difficultly
change it to face-up Defense Position, and if you do, change this card to face-down Defense Position, then, if the targeted monster was a "Ninja" monster, except "Mitsu the Insect Ninja", negate that opponent's activated effect
(And then ended up with another two Team Magma's Groudon, hah!) And here are the promo cards
Then you can activate Vivi once during your turn to generate some number of blue and/or red mana equal to Vivi's power, which should help you keep chaining spells together or cast a really big one
You play Baru and return it to your hand with the trigger from Nature on the stack