Can I Quicken a cantrip to cast it twice in a turn and also use Twinned Spell on both castings?

I’m currently building a monk sorcerer who uses melee spell attacks, notably the cantrip Shocking Grasp. Can I use the Quickened Spell Metamagic option to cast the spell as a bonus action and then use the Twinned Spell Metamagic option to attack an additional enemy, then use Shocking Grasp again as my action and use Twinned Spell again to attack both enemies a second time?

Does Spell Perfection allow Quicken Spell to reduce a spell’s casting time?

The Quicken Spell metamagic feat lets you cast certain spells as a swift action (instead of a standard action). This causes the spell’s slot to increase by +4 levels.

The Spell Perfection feat has several benefits, including the following:

Pick one spell which you have the ability to cast. Whenever you cast that spell you may apply any one metamagic feat you have to that spell without affecting its level or casting time, as long as the total modified level of the spell does not use a spell slot above 9th level.

The text says “affecting” the casting time, rather than “increasing”. So how does this interact with Quicken Spell, which normally reduces the casting time?

Can the spell be cast as a swift action (as per Quicken) without the +4 spell slot increase?

Or is the spell’s casting time unchanged, thereby negating the benefits of Quicken Spell?

Can a Sorcerer quicken a Wand spell?

My Sorcerer has a Wand of Lightning Bolt.

While holding it, you can use an action to expend 1 or more of its Charges to cast the Lightning Bolt spell (save DC 15) from it. For 1 charge, you cast the 3rd-level version of the spell.

He asked whether he could use Quick Spell Metamagic to cast the Lightning Bolt as a bonus action.

When you cast a spell that has a casting time of 1 action, you can spend 2 sorcery points to change the casting time to 1 bonus action for this casting.

One the one hand, the item specifically mentions the caster is using his action. On the other, the item also says the caster is casting the spell, so metamagics can apply. My opinion is that specific beats general, and that the Sorcerer cannot do this. The wand could relate to any spell, with longer or shorter casts times and would always require an action. But I wanted to make sure that is RaW.

Is my Quicken Shadows spell the right level?

I have designed this spell:

Quicken Shadows

5th level necromancy

Casting Time: 1 action

Range: 90 ft

Components: V S

Duration: Instantaneous

Classes: Wizard, Sorcerer, Warlock

The shadows of your enemies are animated and turn against their owners. Choose up to ten humanoids that you can see in range. A shadow (CR 1/2) appears in an unoccupied space next to them and immediately begins attacking them. These shadows disappear if their owner is killed. Also, if their owner is killed, no new shadows rise from the corpse.

At Higher Levels: When you cast this spell using a spell slot of 6th level or higher, you can target one additional creature for each slot level above 5th.

I currently have it listed as 5th level. Is this appropriate? Similar 4th level spells only summon 4 CR 1/2 creatures, while this one can summon up to ten. But this one can only summon Shadows. Also it can only summon one per enemy.

Can Quicken Spell be used spontaneously if Rapid Metamagic is used?

The Quicken Spell feat carries this special requirement:

This feat can’t be applied to any spell cast spontaneously (including sorcerer spells, bard spells, and cleric or druid spells cast spontaneously), since applying a metamagic feat to a spontaneously cast spell automatically increases the casting time to a full-round action.

This is in reference to this rule in the Metamagic SRD:

Therefore, such a character must also take more time to cast a metamagic spell (one enhanced by a metamagic feat) than he does to cast a regular spell. If the spell’s normal casting time is 1 standard action, casting a metamagic version is a full-round action for a sorcerer or bard.

However Rapid Metamagic specifically supersedes this rule:

When you apply a metamagic feat to a spontaneously cast spell, the spell takes only its normal casting time.


So…

Can Quicken Spell be used spontaneously if the casting time is reduced by Rapid Metamagic?

The way I read it, Quicken Spell‘s special is more of an answer to a logistical question, rather than an explicit prohibition, given that it sites another effect(the spontaneous spell’s increased casting time)as the reason for disallowing it. I see it similar to if the PHB said, “You can’t wield three weapons since all playable races have only have two hands.” If you somehow gained a third hand, the rule would cease to apply.

Can you use Metamagic Song and Quicken Spell together?

The description for the feat Metamagic Song in Races of Stone states (emphasis mine):

When you spontaneously cast an arcane spell that is enhanced by a metamagic feat, you can spend a number of uses of your bardic music ability equal to the number of extra levels that the metamagic feat imposes on the spell rather than raising the spell’s effective level. Applying metamagic spontaneously using this method increases the casting time of the spell normally. You cannot use the Metamagic Song feat to add metamagic feats that would make the spell’s effective level higher than the highest level of spell that you can cast normally.

Does the highlighted text mean that you can’t Metamagic song away the cost of a quickened spell?