@zudensachenif I pair a troll wth two pteranodons, do I really double the total xp? Even the troll’s? Seems like one pteranodon adds lots xp adding more creatures does not increase danger in a linear manner – it's a big jump in threat

— Mike Mearls (@mikemearls) October 10, 2014

@mikemearls thanks I'm cool with that. Players love it. But means you could in principle double an ancient dragon by chucking in a couple..

— Dave Aldridge (@zudensachen) October 10, 2014

@zudensachen…of twig blights? Nope – monster CRs need to be close for multiplier to kick in, or monster abilities relevant to threat/encounter

— Mike Mearls (@mikemearls) October 10, 2014

@zudensachen It's in the DMG, will be added to Basic D&D.

— Mike Mearls (@mikemearls) October 10, 2014

@zudensachenby the way, we really appreciate getting these replies! Great level of support from game designer! no problem!

— Mike Mearls (@mikemearls) October 11, 2014