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If I have a reach weapon will the target get a cover with this setup:

T is target
X is me
F is Friend

T = row 1 col 1, F = row 2 col 1, X = row 3 col 2

I feel not, as I can do a straight line from the X square to the target, without crossing the F.

Am I correct?

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RAW: The target has half cover

The Reach quality is a red herring. It doesn't affect whether or not cover applies. The only thing that it does here is allow the attacker to reach the target. With that in mind we can evaluate whether or not an attack from position 'X' incurs cover from position 'T'.

Cover

Walls, trees, creatures, and other obstacles can provide cover during combat, making a target more difficult to harm. A target can benefit from cover only when an attack or other effect originates on the opposite side of the cover...

... A target has half cover if an obstacle blocks at least half of its body. The obstacle might be a ... creature, whether that creature is an enemy or a friend. (emphasis mine)

p.250 and p.251 of the DMG have a chart/description.

To determine whether a target has cover against an attack or other effect on a grid, choose a corner of the attacker's space... trace imaginary lines from that corner to every corner of any one square the target occupies. If one or two of those lines are blocked by an obstacle (including another creature), the target has half cover.... cover image p 250 DMG

No matter which corner of the 'X' (I'd use 'A' for attacker, but meh) square you use, you're blocked from 1-2 corners of the 'T' square.

(It's worth noting that this may not be true for all sizes of creatures. If the target is huge, then a medium creature does not "block half of its body", for example)


RAI: Maybe gives cover.

(to reiterate) The cover description states "attack or other effect originates on the opposite side of the cover".

Let's take the following alternative configuration (Target, Creature, Attacker) and compare it against the raw text.

T - -
C - -
- - A

I don't know anyone who would say that 'A' invokes "half cover" attacking 'T'. Furthermore you can move 'A' infinitely out to the right and 'T' would still have "half cover" because you can't draw a line from a corner of 'A' to every corner of 'T' without hitting 'C' in the process.

It seems counter-intuitive to imply that a halfling gives the same sort of partial cover as a stone pillar because the smallest section of his "square" is in the way of the enemy "square".


RACS and RAF? No cover is applied.

It doesn't make sense that half (or less) of a source of half-cover would still provide half cover.

At my table? The attack does not originate from the opposite side, so it would not be considered.

What I would house-rule is:
If 3+ corners were blocked by a half cover source (i.e. a creature), then you would get half cover. Half cover is the lowest form of cover and since it's only two "lines" from attacker corner to target corners, it would get rounded down to nothing.

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  • \$\begingroup\$ I know it's not official but Mike Mearls has said otherwise here. Its possible that the interpretation that the attack does originate from the attackers square has some merit. \$\endgroup\$ – David Coffron Apr 11 '18 at 13:35
  • \$\begingroup\$ @DavidCoffron (by my reading) That Mike Mearls tweet only confirms the scenario where three creatures are in a line. A C T (attacker, creature, target), where 'A' has reach and attacks 'T'. \$\endgroup\$ – goodguy5 Apr 11 '18 at 14:07
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    \$\begingroup\$ Opposite side does not necessarily mean directly opposite. X is on the "down side" (as well as the right side) while T is on the "up side." These are opposite sides. \$\endgroup\$ – David Coffron Apr 11 '18 at 14:10
  • \$\begingroup\$ I'm not sure opposite side works like that. The DMG gets a bit more specific when talking about Flanking (adjacent and opposite sides) with examples that show what opposite sides means. X is definitely not opposite in it's current position. \$\endgroup\$ – NautArch Apr 11 '18 at 15:12

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