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To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as a flashback cost), add any cost increases (such as kicker costs), then apply any cost reductions (such as that of The Wind Crystal's first ability)

By detaching one material from Number 50, you can target and send a monster on the field to the graveyard, provided that monster has attack less than or equal to Number 50s

His attacks are mostly mental in nature

And (by itself) conjunctives are pretty rare now, and used only for highly restricted, joined-at-the-hip, all-or-nothing effects where everything is required

Ready to play right out of the box

Carobein and Dark Angel can each discard themselves under the right circumstances to have a Trickstar gain even more ATK