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This brute of a card can only be driven for one purpose - Instant Win, and a card with that in mind isn't really that good of a card in terms of healthiness for the game

BT10-090 R Tamer Zenjiro Tsurugi Color Green Cost 3 Type Xros Heart Card Text 1 [Effect] [On Play] You may play [Ballistamon] from your hand or from under one of your Tamers without paying its memory cost

Another interesting trick with Big Bang Shot is that you can equip it your opponents monster and they attack your defense position monster, your opponent will take the piercing damage rather than you

Lower Text [When Attacking][Once Per Turn] Until the end of your opponent's turn, 1 of your opponent's Digimon gains Security Attack -1