Players Handbook: The Grouptesting Strikes Back!
How about "Players Options"
DMs are players too... but there could be a title that is similar and even more clear, such as "Adventurer Options" if the book includes options for PCs, or "Monstrous Options" if the book contains ways to tweak monsters or use them differently (like as PCs).What if it had DM options in it as well?
Yep. Unfortunately, they were so focused on avoiding one particular mistake, they dove straight into making another - specifically, trying to sell two books with largely duplicated content, each containing only half of the classes people 'needed'.
My favorite 3rd edition book is "Stormwrack" (part of a series that also includes "Frostburn" and "Sandstorm"), which has a little of everything related to ocean/coastline adventuring (classes, vehicles, gear, monsters, NPCs, adventure ideas, etc.). That would be an example as an alternative model to numbered PHBs.
Yeah this is the mind flayer was perfect to me. I'm DMing Oota and want to finish the campaing at lvl 20. So the mind flayer in Volo's combined with Mystic class in UA and demonic influences will provide a good material for that.Good point. I really liked the extra spells in the Princes of the Apocalypse adventure book and had hoped that the subsequent adventure books would have at least as much auxiliary material. WotC is publishing adventure books (they're more like campaigns than adventures) faster than my D&D group can play them (we just finished PotA two weeks ago and my group ignored all side-quests), but I still buy some of the adventures for the non-adventure content.
Volo's Guide to Monsters really hit the spot in terms of the kind of material I was hoping to collect from the adventure books (I could build a whole campaign around just the goblin lore in VGtM). Certainly, an adventure book about Mind Flayer's awakening the Kraken or some-such would be a good place to put a self-contained "psionics handbook" as an appendix.