pming
Legend
Hiya!
...and for adding in my 2¢... 5e is very forgiving of group composition as long as everyone at the table realises their parties weaknesses and does instantly see them as signs of "a broken rule system" (which I see faaaaar too often..."My Thief can't stand up in a fight as well as the Fighter! This system is broken!"). In my (paused) 5e campaign, I have four players (plus one drop-in-when-he-can-make-it). Their party is a Paladin, Warlock, Thief and Thief. They all just hit level 4. They are doing just fine...but they realize they will have a lightly harder time at healing, and large-scale melee brawls. They work around it..sometimes by being quite clever in their tactics, I must say (they were all 2nd/3rd level and took on *4* Ogres...and won most soundedly! Planing and tactics...well placed spell here and there, some good recon, tactical choke-point...I almost felt sorry for those ogres...).
Anyway...4 is the assumed party size and all that...but really, 5e is designed in a really organic way. Clever play and slick ideas and planning can have a HUGE effect (usually by giving Advantage to PC's and Disadvantage to the baddies). A party of all arcane caster types could probably do quite well...or a party of all fighter types, or thief types, or cleric types. I wouldn't worry about it. Just play on, and as long as your DM plays without bias and always with the "what would logically happen in this situation", I think everyone will do just fine.
^_^
Paul L. Ming
...and for adding in my 2¢... 5e is very forgiving of group composition as long as everyone at the table realises their parties weaknesses and does instantly see them as signs of "a broken rule system" (which I see faaaaar too often..."My Thief can't stand up in a fight as well as the Fighter! This system is broken!"). In my (paused) 5e campaign, I have four players (plus one drop-in-when-he-can-make-it). Their party is a Paladin, Warlock, Thief and Thief. They all just hit level 4. They are doing just fine...but they realize they will have a lightly harder time at healing, and large-scale melee brawls. They work around it..sometimes by being quite clever in their tactics, I must say (they were all 2nd/3rd level and took on *4* Ogres...and won most soundedly! Planing and tactics...well placed spell here and there, some good recon, tactical choke-point...I almost felt sorry for those ogres...).
Anyway...4 is the assumed party size and all that...but really, 5e is designed in a really organic way. Clever play and slick ideas and planning can have a HUGE effect (usually by giving Advantage to PC's and Disadvantage to the baddies). A party of all arcane caster types could probably do quite well...or a party of all fighter types, or thief types, or cleric types. I wouldn't worry about it. Just play on, and as long as your DM plays without bias and always with the "what would logically happen in this situation", I think everyone will do just fine.

^_^
Paul L. Ming