Base Card Pool
Legendary Monster
LaLa Li-oon
Monsters
Thunder Dragonmatrix
Batteryman Micro-Cell
Wattdragonfly
Mithra the Thunder Vassal
Rai-Mei
Batteryman AA
Wattmole
Mahunder
Pahunder
Brohunder
Sishunder
Evilswarm Thunderbird
Batteryman 9-Volt
Rai-Jin
Zaborg the Thunder Monarch
Thunder Dragon
Mist Valley Executor
Sanga of the Thunder
The Creator
Extra Deck Monsters
Twin-Headed Thunder Dragon
Polymerization
Electro-Whip
Dark World Lightning
El Thor
(Once per turn): If you Summon a Thunder monster you can banish it and if you do, banish 1 monster in the column your monster was in until your opponent's Draw Phase.
Legendary Quest
If you banish an opponent's monster, you can place 1 "LaLa Li-oon" from your hand in your Spell/Trap Zone and place 1 Raigo Counter on it.
Legendary Relic
"LaLa Li-oon" you control are unaffected by your opponent's card effects/skills during your turn. (Once per turn): During your opponent's End Phase, place 1 Raigo Counter on all "LaLa Li-oon" you control. (Once per turn): During your End Phase, you can shuffle 1 "LaLa Li-oon" from your Spell/Trap Zone into the Deck, and destroy cards on the field equal to the number of Raigo Counters that were on it (this is treated as a card effect). If "LaLa Li-oon" leaves your field, shuffle all "Lala Li-oon" in your GY and banishment into the Deck also reset your Legendary Quest.
Tip Skills
Your monsters banished by your Unique Skill are also only banished until your opponent's Draw Phase.
Your non-Thunder monsters in your possession are also always treated as Thunder monsters. (Once per turn): You can banish 1 card in your hand; add 1 Thunder monster with the same Level but a different name from your GY to your hand and draw 1 card.