This rewards individual instances of discard instead of mass discard from wheels, since each separate trigger represents another card drawn when the targeted creatures deal combat damage
You should also consider your deck's mana curve, win conditions, and strategy
It's a 7/7 for seven mana with trample and haste, meaning it'll likely surprise an opponent the turn it comes into play and attacks them
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When there is an unblocked creature (hereinafter referred to as a seed creature), you can use the ability called (Upper) Ninjutsu to swap it with that creature and enter the battlefield attacking