D&D 5E Maintaining Concentration from a spell cast through 'Contingency'

[Ogre1/2]

Good afternoon. A question? If you are under the influence of a spell effecting yourself from a 'Contingency' spell, i.e. 'Stoneskin' that requires Concentration. Do you still need to maintain 'Concentration'. My thought: is 'Contingency' like a scroll, or a potion? It is my understanding that with a scroll or potion there is no need for 'Concentration'. Or, even though you cast the spell up to 10 days ago, you still need to maintain 'Concentration'?

Wondering your thoughts/ideas on this.

Thank you.

Read more: http://www.enworld.org/forum/showthread.php?404715-Can-I-Polymorph-myself/page2#ixzz4XGwAh6iH

 

[Caliban]

With a scroll you still need to maintain Concentration, but with a potion the spell is entirely self-contained. (Spell scrolls are like "partially cast" spells, and you complete the casting as you read it from the scroll.)

I don't see anything that would change how Concentration works with a spell cast via Contingency - you are still the one maintaining concentration on the spell, which means you would need to end any previous concentration spell that you were maintaining, and would need to drop the spell cast via contingency if you wanted to cast a new concentration spell.

The only way I know to concentrate on two spells at once is by being a sorcerer and using twin spell metamagic as you cast it.

 

[Saeviomagy]

Note that glyph of warding has a specific clause that says "If the spell requires concentration, it lasts until the end of its full duration.", referring to the triggered spell.

Contingency has no such clause, so I would expect the intent is that you must concentrate on it.