Developing to Spec: Part 21a (Shield Feats)

This is section one of Part 21 of a series of articles looking at creating a set of Starfinder feats under specific constraints. The point of these is to offer practical examples of how I approach developing and writing supplemental rules for tabletop RPGs. Rather than just blather on about things as I think of them, I go over issues as I encounter them in a real-world example.

This also represents the Beginning of the End. We should have just two more weeks to go before we’ll have gone through and converted every PF Core Rulebook feat that doesn’t already have a Starfinder version. At which point I’ll have to start doing something else for my Tu-Fri posts. So if you have ideas of what you’d like to see, let me know!

We’ve hit two more shield-related feats — Shield Mastery and Shield Slam. These are more entries in a long line of PF feats designed to make attacks with your shield easier and more effective. In Starfinder, since shield attacks in melee use your unarmed attack rules, they are already as effective as any unarmed attack you have (potentially more so, since they are not archaic and may have fusions added to them).

So we need to make the Starfinder versions of both to appeal to characters who want to have more useful shield options in combat, but we can’t increase the actual effectiveness of shield attacks in terms of accuracy or damage (or we risk breaking the game’s combat math). Luckily, there is more to combat than just how well or hard you hit. We can break these up so you take take either on its own, depending on what aspect of shields you wish to improve. We probably *could* get away with not having Shield Focus as a prerequisite to Shield Mastery, but it just feels weird to me for a character to mastery something without having focused on it, and beyond proficiency with shields its the only prerequisite we;re suing, so I’m fine with adding it.

You and your shield are as one.
Prerequisites: Proficiency with shields, Shield Focus.
Benefit: You reduce the armor check penalty of a shield by 2 (though this can never turn into a bonus). You reduce the bulk of one shield you are carrying or wielding by 2, to a minimum of light bulk.

You are skilled at hitting things with your shield when the opportunity arises.
Prerequisites: Proficiency with shields.
Benefit: When wielding a shield that allows you to make unarmed attacks with it, you can take one attack of opportunity each round to attack with your shield, without expending your reaction. You cannot do this if for any reason you could not have made an attack of opportunity even if you had had a reaction available to do so.

Like all my blog posts, this is brought to you by the wonderful patrons of my Patreon! Want more of this content? Want to suggest specific game systems, topics, of kinds of articles? All of that is only possible if people join my Patreon, help me have the free time to write these things, and let me know what you want to see!

About Owen K.C. Stephens

Owen K.C. Stephens Owen Kirker Clifford Stephens is a full-time ttRPG Writer, designer, developer, publisher, and consultant. He's the publisher for Rogue Genius Games, and has served as the Starfinder Design Lead for Paizo Publishing, the Freeport and Pathfinder RPG developer for Green Ronin, a developer for Rite Publishing, and the Editor-in-Chief for Evil Genius Games. Owen has written game material for numerous other companies, including Wizards of the Coast, Kobold Press, White Wolf, Steve Jackson Games and Upper Deck. He also consults, freelances, and in the off season, sleeps. He has a Pateon which supports his online work. You can find it at

Posted on January 21, 2020, in Game Design, Pathfinder Development, Starfinder Development and tagged , , , , , , , , . Bookmark the permalink. Leave a comment.

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