You can cast another spell from among the milled cards using the permission granted by Locke's last ability.
With double strike and a +1/+1 counter every time another legendary creature enters your battlefield, it quickly scales into a major threat
What if we let the audience choose their favorite card and also printed that one as well
Machine Duplication X SPELL Target 1 Machine monster you control with 500 or less ATK
meta, with card effects that can range from summoning more monsters to downright shutting down enemy abilities and wiping them off of the field
I think in this case, the previous cards with Magmortar firing were deemed acceptable because they could be passed off a fantastical Pokemon attack, while perhaps this time TPCi thought that the smoke was too suggestive of a fired hand gun, which is a type of weapon that is more accessible to children than Pokemon fire or a mortar/bazooka, and changed the pose for that reason