Since Burning Soul is Japanese-theme, I might want to create some spirits based on Japanses God and Goddess
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TheVolcanicDragonDeity, RyuJin
Red, X-Rare, War Dragon, Cost 7, 3 Red Reduction, 1 Red Symbol
Lv1: 1 core, 4000 BP/Lv.2: 3 cores, 7000 BP/Lv.3: 5 cores, 12000 BP
[Lv.1-Lv.2-Lv.3] True-Clash (When Attacks) Your opponent spirits/ultimates must block if possible.
[Lv.1-Lv.2-Lv.3] When this spirit activates True-Clash, if this spirit has a Soul Core, this spirit gains +5000 BP.
[Lv.2-Lv.3] Flash Timing - When this spirit battles, by sending one core from this spirit to the void, refresh this spirit. If you send a Soul Core to the void, send one core from your opponent's life to their reverse.
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TheStormSeasDeity, Susano-o
Blue, X-Rare, Fighting Spirit, Cost 9, 4 Blue Reduction, 2 Blue Symbol
Lv1: 1 core, 7000 BP/Lv.2: 4 cores, 15000 BP
[Lv.1-Lv.2] (When Summoned) Treat all of your spirits in the "Fighting Spirits" family up to it's highest Level.
[Lv.1-Lv.2] Assualt: 2 (When Attacks) During this turn for the number of times stated above, you can exhuast one Nexus in order to refresh this Spirit.
[Lv.2] While this spirit has a Soul Core on it, if one of your spirits in the "Fighting Spirits" family attacks, your opponent must choose one of their spirits to exhausted. If they don't, they cannot block.