Conjure Puppies

You summon up to 20 small puppies in an unoccupied space that you can see within range. 

Each beast is also considered fey, and it disappears when the spell ends.

The summoned creatures are friendly to you. They appear in a group and all creatures (except you) must role a DC 25 wisdom check or be charmed by the puppies and use all their movement and actions to get to the puppies.

Once they reach the puppies they take the number of puppies times 1d10 piercing damage at the start of every turn and remain charmed. Once all the targets are within 5 ft of the puppies they will blow up dealing 10d12 damage of your choice. The creatures that survive are stunned for one round or until hit.