Vortex Retaliation

A small vortex like a black hole opens up and sucks in the attack. In order to block an attack it uses the spell rules the vortex takes/stops all including magic missile.

Things like daggers, arrows, bolts or bullets are added automatically to the vortex attack list unless they have a spell (see spell rules) or enchantment (stops attack but leaves item on the floor) on them. On any subsequent turns you may (If you still have concentration) use a bonus action to release the previews attack or any attack in the vortex attack list (this consumes the attack) on a chosen target by casting the Vortex Retaliation spell again at any level.  

• The spell can hold up the casters wisdom modifier plus proficiency bonus of attacks in the vortex attack list, you can pick and chose the attacks you wish to keep if you go over what you can hold.
• All attacks in the list keep and use any bonuses and/or modifiers that the attacker had this includes poison and/or buffs added buy equipment, as well as the attack roles that the attacker had, this also applies to damage bonuses and/or modifiers. 
• When you lose concentration all physical items just appear out of nowhere and fall to the floor while all spells are lost. 
•  Spell rules: In order for a spell to be added to the Vortex attack list it must be of the same level or lower as the vortex spell is cast at, if the spell or attack is higher than the cast level of the vortex spell one must succeed on an ability check using your spellcasting ability. The DC equals 10 + the spell's level. If you fail the check you and all the creatures that would be affected by the attack take half damage before saving throws for the attack. The spell is not added to the vortex spell list.

note: the duration is not an error it is thought out as is the fact that it is a first level spell with a range type of sight (mostly for retaliation of attacks) be clever and I am sure you can figure out the true nature of this spell.