Recently, I played a warlock in a 5e one-shot. We were playing at level 7 and I was a Pact of the Blade warlock with the Fiend patron. As a Fiend Warlock, I have a feature called &quot;Dark One's Blessing&quot;, :  Starting at 1st level, when you reduce a hostile creature to 0 hit points, you gain temporary hit points equal to your Charisma modifier + your warlock level (minimum of 1).  The description of the Armor of Agathys spell reads:  A protective magical force surrounds you, manifesting as a spectral frost that covers you and your gear. You gain 5 temporary hit points for the duration. If a creature hits you with a melee attack while you have these hit points, the creature takes 5 cold damage. At Higher Levels. When you cast this spell using a spell slot o f 2nd level or higher, both the temporary hit points and the cold damage increase by 5 for each slot level above 1st.  The situation was that there was a pack of 'minions' (4th-edition term, I know... but they were low-AC 5 hp monsters that died in 1 hit most of the time) attacking my group. The dragonborn wizard knew Fly, and grabbed the halfling and flew out of reach of the group of minions; I was left there with Armor of Agathys cast on me at level 4, so I had 20 temp hp and did 20 damage to each minion. The question comes from the functionality of Temp HP (THP)... It does not stack. Instead, you must choose which set to acquire, either keeping the THP you currently have or using the new number provided by whatever is trying to give you more THP. Once I was below 20 THP from the attacks made on me by this swarm of minions, I started taking the 10 (warlock level + CHA mod= 7+3) THP provided by Dark One's Blessing. After rereading Armor of Agathys today, I noted it says 'while you have these hit points'... leading me to believe that choosing to take the 10THP from Dark One's Blessing would remove the Armor of Agathys and its damaging capability. TL;DR Does Armor of Agathys only work if you have THP from the spell specifically, or does it still work if you gain more THP from another source (like from Dark One's Blessing) while the spell is still active?
The spell Armor of Agathys states:      You gain 5 temporary hit points for the duration. If a creature hits you with a melee attack while you have these hit points, the creature takes 5 cold damage.   Now, assume my buddy uses Inspiring Leader to give me 10 temporary hit points — does the effect end?
How to remove the top horizontal bar in fancyhdr? When using fancyhdr, how do you remove the top horizontal rule?  I do not want a header at all, just a footer.  This is what I do now:  \documentclass{article} \usepackage{fancyhdr} \pagestyle{fancy}  \lfoot{text} \cfoot{text 2} \rfoot{text 3}  \begin{document} Foo Bar \end{document} I've started putting into practice the answer to . Yet I would like to change this so that there are brackets around the citations:   in the superscript in text,     in the superscript in footnote,  in the bibliography.   I've managed to get the first one and the last one working. The second one however, I don't know how to do this.   Note that I mainly write in english and in dutch, so I don't think there is much babel interference.  Also, would there be a way to order the footnotes so that first all ''normal'' \footnote{} are printed and below that all \sfcite{} citational footnotes (per page that is)?  Here's what I've managed to concoct:  \documentclass{article} \usepackage[english]{babel} \usepackage[pdfborder={0 0 0}]{hyperref} \usepackage[citestyle=numeric-comp,sorting=none,hyperref]{biblatex} \usepackage{filecontents}  % No brackets around the number of each bibliography entry \DeclareFieldFormat{labelnumberwidth}{\textbf{[#1]}}  %--------------------------------------------------------------- % Essentially verbatim from Joseph Wright % http://www.texdev.net/2010/03/08/biblatex-numbered-citations-as-footnotes/ \makeatletter \ExecuteBibliographyOptions{citetracker,sorting=none}  \DeclareCiteCommand{\notefullcite}[\mkbibbrackets]     {\usebibmacro{cite:init}%         \usebibmacro{prenote}}     {\usebibmacro{citeindex}%         \usebibmacro{notefullcite}%         \usebibmacro{cite:comp}}     {}     {\usebibmacro{cite:dump}%         \usebibmacro{postnote}}  \newbibmacro*{notefullcite}{%     \ifciteseen         {}         {\footnotetext[\thefield{labelnumber}]{%             \usedriver{}{\thefield{entrytype}}\addperiod}}}  \DeclareCiteCommand{\sfcite}[\cbx@superscript]%     {\usebibmacro{cite:init}%         \let\multicitedelim=\supercitedelim         \iffieldundef{prenote}         {}         {\BibliographyWarning{Ignoring prenote argument}}%     \iffieldundef{postnote}         {}         {\BibliographyWarning{Ignoring postnote argument}}}     {\usebibmacro{citeindex}%         \usebibmacro{sfcite}%         \usebibmacro{cite:comp}}     {}     {\usebibmacro{cite:dump}}  \newbibmacro*{sfcite}{%     \ifciteseen         {}         {\xappto\cbx@citehook{%             \noexpand\footnotetext[\thefield{labelnumber}]{%             \fullcite{\thefield{entrykey}}\addperiod}}}}  \newrobustcmd{\cbx@superscript}[1]{%     \mkbibsuperscript{[#1]}%     \cbx@citehook     \global\let\cbx@citehook=\empty} \let\cbx@citehook=\empty \makeatother %---------------------------------------------------------------  \begin{filecontents}{\jobname.bib} @article{ref1,     hyphenation = {american},     title = {Natural Products as Sources of New Drugs over the Last 25 Years},     author = {Newman, D.J. and Cragg, G.M.},     journal = {J. of Nat. Prod.},     volume = {70},     number = {3},     pages = {461--477},     year = {2007}} @article{ref2,     hyphenation = {american},     title = {Natural products as leads to potential drugs: an old process or the new hope for drug discovery?},     author = {Newman, D.J.},     journal = {J. of Med. Chem.},     volume = {51},     number = {9},     pages = {2589--2599},     year = {2008}} @online{ref3,     author = {Quintin, C.},     title = {Les eponges},     url = {http://christophe.quintin.pagesperso-orange.fr/Liste_Doc.html},     urldate = {2009-05-03} } \end{filecontents}  \addbibresource{\jobname.bib}  \begin{document} First citation.\sfcite{ref1,ref2} Some text\footnote{A footnote}.   \pagebreak Second citation\sfcite{ref1}, second citation\sfcite{ref2}, first citation.\sfcite{ref3} \printbibliography \end{document} Operators can be cyclically interchanged inside a trace: $${\rm Tr} (AB)~=~{\rm Tr} (BA).$$ This means the trace of a commutator of any two operators is zero: $${\rm Tr} ([A,B])~=~0.$$ But what about the commutator of the position and momentum operators for a quantum particle? 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