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My friends and I just bought the D&D Starter Set. One of my friends decided to go for the wizard but we are currently having problems casting spells.

In the basic rules it doesn't tell us which dice to use for Shield. How do we determine how big the shield is, and does it stay in the spot he cast it or does it follow him?

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    \$\begingroup\$ Welcome to this great game! We're here to help! Since two of your questions have to do specifically with Shield and one with general spellcasting rules, I suggest you split this question into two: one about Shield and one about spell levels. That will ensure that each gets good attention and you get the best answers possible. \$\endgroup\$ – nitsua60 Mar 21 '16 at 4:00
  • \$\begingroup\$ related: rpg.stackexchange.com/q/44441/23970 \$\endgroup\$ – nitsua60 Mar 21 '16 at 4:06
  • \$\begingroup\$ Related: rpg.stackexchange.com/questions/55779/… \$\endgroup\$ – Adeptus Mar 21 '16 at 4:06
  • \$\begingroup\$ Thank you for the advice, i edited the question to focus on one topic. \$\endgroup\$ – Paladin-San Mar 21 '16 at 4:10
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    \$\begingroup\$ To get a better understanding of how things work in D&D, you can download the free Basic Rules and the Free Basic Rules for Dungeon Masters at the Wizards of the Coast web site. \$\endgroup\$ – KorvinStarmast Mar 21 '16 at 13:22
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Each spell tells you what needs to be rolled, in its description.

  • Some need an attack roll to see if they hit.
  • Some make the target make a saving throw to see if they can resist or avoid the effects.
  • Some (like Shield) just work.

The size of the shield is not specified (and doesn't really matter), only its effect: +5 to AC and immunity to Magic Missile, until the start of the caster's next turn.

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The spell Shield does exactly what it says.

Until the start of your next turn, you have a +5 bonus to AC, including against the triggering attack, and you take no damage from magic missile.

There are no dice to roll.

Now if we look back at "Range" on p. 22 of the Starter Set Rules, we'll see that Shield is specifically mentioned when describing a spell that targets "self." This means that the effect does travel with the caster. Wherever the caster is (for the duration), there is the shield.


Historical note: Shield is explicitly an antidote to Magic Missile. In the early days it was pretty tough being a Magic-User at low levels, to the extent that you spent a lot of time just tagging along behind some meatier party members trying not to get in the way. But Magic Missile was the one thing you had going for you: it just hits. No to-hit roll, no saving throw. Boom.

Unless the target had Shield, which explicitly counters Magic Missile's unique ability. (There are other things than can eventually protect you from a magic missile, but at 1st-level it makes sense to look at them as a pair.)

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