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What happens if you cast it in a direction that hits a wall before 100 feet? Earlier editions had rules for the remainder bouncing back towards you. This is bad if it macks it to you, but good because it can hit the same target(s) on its way back.

Quote from GRROUCH >>

What happens if you cast it in a direction that hits a wall before 100 feet? Earlier editions had rules for the remainder bouncing back towards you. This is bad if it macks it to you, but good because it can hit the same target(s) on its way back.

Nothing. Spells with an Area of Effect stop when they encounter an obstruction that provides Total Cover, unless the spell explicitly says otherwise.

Thanks. It was probably a good rule change overall. There were some fun timees every now and then doing it the old way, but the new way has a side benefit of what happens when a caster miscalcutates the area of effect, and then sees it applied by the DM.

So how many spell slots are there above 3?

Quote from MPA >>

So how many spell slots are there above 3?

Do you mean how many spell levels are there above 3? There are six. Spell levels range from 1 to 9.

Or do you mean how many spell slots does your character have that are above level 3? That depends on your character's level. The number of spell slots you have at each level is listed in a big table in the class description for your chosen class.

Quote from wagnarokkr >>

Quote from MPA >>

So how many spell slots are there above 3?

Do you mean how many spell levels are there above 3? There are six. Spell levels range from 1 to 9.

Or do you mean how many spell slots does your character have that are above level 3? That depends on your character's level. The number of spell slots you have at each level is listed in a big table in the class description for your chosen class.

 No I know what spell levels are.  It's spell slots that I don't really know about. These didn't exist in early AD&D/Basic.  If there's no general answer than never mind.

Quote from MPA >>

 No I know what spell levels are.  It's spell slots that I don't really know about. These didn't exist in early AD&D/Basic.  If there's no general answer than never mind.

This is the description of what spell slots are and how they work from the Player's Handbook:

Spellcasting is taxing, so a spellcaster can cast only a limited number of level 1+ spells before resting. Spell slots are the main way a spellcaster’s magical potential is represented. Each spellcasting class gives its members a limited number of spell slots of certain spell levels. For example, a level 3 Wizard has four level 1 spell slots and two level 2 slots.

When you cast a spell, you expend a slot of that spell’s level or higher, effectively “filling” a slot with the spell. Imagine a spell slot is a groove of a certain size—small for a level 1 slot and larger for a higher-level spell. A level 1 spell fits into a slot of any size, but a level 2 spell fits only into a slot that’s at least level 2. So when a level 3 Wizard casts Magic Missile, a level 1 spell, that Wizard spends one of four level 1 slots and has three remaining.

Finishing a Long Rest restores any expended spell slots.

The part of the spell description you were asking about related to what happens when you cast a spell using a spell slot of a higher level than the spell level. The description of that from the Player's Handbook is:

Using a Higher-Level Spell Slot

When a spellcaster casts a spell using a slot that is of a higher level than the spell, the spell takes on the higher level for that casting. For instance, if a Wizard casts Magic Missile using a level 2 slot, that Magic Missile is level 2. Effectively, the spell expands to fill the slot it is put into.

Some spells, such as Magic Missile and Cure Wounds, have more powerful effects when cast at a higher level, as detailed in a spell’s description.

Quote from wagnarokkr >>

Quote from MPA >>

 No I know what spell levels are.  It's spell slots that I don't really know about. These didn't exist in early AD&D/Basic.  If there's no general answer than never mind.

 

This is the description of what spell slots are and how they work from the Player's Handbook:

Spellcasting is taxing, so a spellcaster can cast only a limited number of level 1+ spells before resting. Spell slots are the main way a spellcaster’s magical potential is represented. Each spellcasting class gives its members a limited number of spell slots of certain spell levels. For example, a level 3 Wizard has four level 1 spell slots and two level 2 slots.

When you cast a spell, you expend a slot of that spell’s level or higher, effectively “filling” a slot with the spell. Imagine a spell slot is a groove of a certain size—small for a level 1 slot and larger for a higher-level spell. A level 1 spell fits into a slot of any size, but a level 2 spell fits only into a slot that’s at least level 2. So when a level 3 Wizard casts Magic Missile, a level 1 spell, that Wizard spends one of four level 1 slots and has three remaining.

Finishing a Long Rest restores any expended spell slots.

 

The part of the spell description you were asking about related to what happens when you cast a spell using a spell slot of a higher level than the spell level. The description of that from the Player's Handbook is:

Using a Higher-Level Spell Slot

When a spellcaster casts a spell using a slot that is of a higher level than the spell, the spell takes on the higher level for that casting. For instance, if a Wizard casts Magic Missile using a level 2 slot, that Magic Missile is level 2. Effectively, the spell expands to fill the slot it is put into.

Some spells, such as Magic Missile and Cure Wounds, have more powerful effects when cast at a higher level, as detailed in a spell’s description.

Again. Not what I asked.  Never  mind.