D&D 5E 8th level Demiplane spell...does this sound right?

[Sauropod]

So the Warlock cast the 8th level spell Demiplane underneath a room that was described as wall-to-wall treasure in the Tiamat adventure. The spell states, "you create a shadowy door on a flat solid surface that you can see within range. The door is large enough to allow Medium creatures to pass through unhindered. When opened the door leads to a demiplane that appears to be an empty room 30 feet in each dimension..."Without going into details the party made it so the Warlock could see the flat surface the treasure was piled upon. Since the spell doesn't state if the door opens in or out he chose for the door to open inwards. The treasure began filling in the hole above the door. The module describes the room to be cathredral-like in size, meaning tall mounds of treasure. After 1 hour of the treasure filling/being pushed into the Demiplane the spell expires magically closing the portal. After slaying Tiamat the party teleported to Xonthol's tower, placed the Demiplane's door on the ceiling of a large room, and cackled with glee as the coins and magic items poured out.Using 4 coins per cubic inch, and assuming about a 25% "waste" because they were not stacked perfectly, and other magic items are mixed in, it appears they made off with roughly 140 million (!) coins.Even if twas all copper, which the Hoard of the Dragon Queen's final treasure was full of which irked my party to no end and I justified by saying the "good stuff" had been taken, it works out to nearly 2 million gold.Anyone seen a demiplane used like this before? Now the party, full of CN folk, is excited about becoming bank robbers...I appreciate the ingenious use of the spell and was curious if others have experienced such usage. I wish I hadn't read the room's description! PS-now the necromancer is dreaming of creating, and storing, an undead army for future use against the factions that didn't support them in the Tiamat battle!

 

[ehenning]

Haven't tried it, but sounds completely reasonable. I would question how the caster could see the very bottom of the treasure, though. You have to see the surface, so unless you have a way to see through all the coins, it shouldn't be possible. And, if you choose a spot next to the treasure, you will need to be shoveling the treasure in for an hour.

 

[Sauropod]

Thanks for your reply!

Reverse gravity from the Wizard allowed the Warlock to see it.

They then tried various spell combos to fill it rapidly. A wall of force acted as a backstop for multiple ring of the ram shots for some mass movement. Then it was a wall of ice in a shape that funneled coins in. Finally much (hosted) shoveling Deadliest Catch-style to top off the tank so to speak... They hit level 20 after killing Tiamat and want to know how much gold they made off with so they can retire and create spells, magic items, castles and kingdoms til higher level rules come out. I tipped my hat to this party of tweenagers, it was better than any heist my college groups back in the 1e and 2e days ever pulled off!

 

[Dkase]

Sounds like a pretty innovative use for it! As a DM, I'd just let them do it as it would give them all the lucre they need to write their own character's endings and retire the way they want. They just took down a goddess, so they deserve to live it up! Not sure if anything for high level campaigns are in the works since lv 20 is as high as it goes at the moment.

 

[ehenning]

Sounds like a pretty innovative use for it! As a DM, I'd just let them do it as it would give them all the lucre they need to write their own character's endings and retire the way they want. They just took down a goddess, so they deserve to live it up! Not sure if anything for high level campaigns are in the works since lv 20 is as high as it goes at the moment.

Doesn't look like it.

http://www.sageadvice.eu/2015/09/26/why-never-any-official-adventures-for-16-20/

 

[S'mon]

They hit level 20 after killing Tiamat and want to know how much gold they made off with so they can retire and create spells, magic items, castles and kingdoms til higher level rules come out.

The DMG rules look like they should work - every 30,000 XP over 20th level gets you either an Epic Boon, 2 point attribute increase, or Feat. The sidebar box says the attribute boosts can go to 30, handy if you want PCs killing CR 30 monsters. Personally I'm keeping the stat limit at 20 so lower CR foes can still threaten.

 

[FormerlyHemlock]

The DMG rules look like they should work - every 30,000 XP over 20th level gets you either an Epic Boon, 2 point attribute increase, or Feat. The sidebar box says the attribute boosts can go to 30, handy if you want PCs killing CR 30 monsters. Personally I'm keeping the stat limit at 20 so lower CR foes can still threaten.

The one thing: one advancement per 30,000 XP is far, far too cheap in my opinion. It makes it easy to rack up Epic Boons and ability score increases at an ever-accelerating pace.

I've told my players that I'm okay with advancing beyond 20th level, but every level past 20 is as much XP as going from level 1 to 20 all over again.

 

[Sauropod]

After letting my group know official content may not be coming (thanks for the Sage Advice link!) but, being D&D we could cobble together some rules, they opted to spend the money on making new magic items, spells, and castles, basically describe their characters retirement years as well as make themselves power brokers. They then asked to start new characters decades in the future so they could be reminded about their previous characters great deeds. And they wanted their new characters to at some point meet the old ones.

I skipped 3rd and 4th editions so I can't comment on them but I can say the 5th edition rules are streamlined and fluid, making for a fun, fast paced game! Also sites like this weren't around "back in the day" so I appreciate the wealth of knowledge and global community access the internet, and enworld, provide. I have had fun just reading opinions (polymorph for example).

Thank you all kindly and good luck and good hunting!

 

[HardcoreDandDGirl]

it seems to me that multi spells that are all 1/day only were used and charges form an item... they earned that money,

 

[Sauropod]

I have to concur! To make my life easier the group as a whole spent some time today with Excel and some "old school" D&D articles to figure out the area of the room and estimate how full they were able to get it and how many coins they should have, then we used percentages to figure out what their haul ended up at. Based on all the math the group split 46,609,344 in gold, they are still working on determining how many magic items fell in. "Thanks Tiamat Treasure Room description" they proudly exclaim! Since they are retiring I figured it was cool, and they are now actively interested in castle design and the rules therein. It is really cool to see how I was at that age, digging into the rules, drawing castles and determining their costs, etc. I have some of the old 2e stronghold books, etc. and they think it is so cool to use those rules.