TheSword
Legend
Which is why I referred to spell slots as the other limitation. If a caster wants to use their only 9th level slot to be slightly better in combat then okay... I suspect Foresight is not used very often though.foresight, force cage, dimension door/teleport, simulacrum, greater invisibility, banishment etcetera?
Of that short list, 4 choices don't require concentration. This entire discussion assumes all parties understand how 5e works, and that concentration is a limitation.
I regularly have characters that know more than one concentration spell, and I don't see why you'd try to constrain a caster to only one when discussing their flexibility. Red herring.
If people have 1500gp of ruby dust and want to use their only 7th level slot to trap some people for an hour then sure. They can. Also suspect it’s not a go to spell.
Teleport moves you from A to B. It’s use is entirely circumstantial and limited by size of the party... also a one way trip at a 7th level unless you plan on waiting a day.
Simulacrum... cracks me up... the limitations make it impractical for typical adventures when you have... you know... other players to think about who are unlikely to just sit around while you carve your icy spell battery. They start of naked, have pitiful hp, destroyed instantly at 0 hp and can be ended with a single 3rd level spell and a lucky roll - or guaranteed with an instant 7th level spell. 12 hours work and 1500 ruby dust (you’re getting through the ruby dust at a fair speed here) all ended with a single spell... Simulacrum works where a DM has lost all control over the campaign or doesn’t care.
As for the other two, I can’t believe anyone is claiming a spell that requires concentration is overpowered.
These spells are only OP compared to what martials can do in white room theorycrafting and the bedrooms of teenagers.