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Beetrooper Sting Lancer is just a beefy monster, with 2400ATK/1800DEF, which when summoned, offers you a chance to search for a Beetrooper Spell or Trap Card to add to your hand

Another joke people sometimes miss is in the flavor text, which looks like a dictionary definition

UR Ultra Rare Dragunity Legionnaire X WIND Level 3 [ Winged BeastEffect ] ATK 1200 DEF 800 When this card is Normal Summoned: You can target 1 Level 3 or lower Dragon "Dragunity" monster in your GY

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same combo, Bravery Charm for 140 HP, so that's 6 energy from Psychic Embrace, so that's 120 DMG, then multiplier is 20x PER DAMAGE = 240 DMG SNIPE