[Miller]

I remember testing this a while ago for the damage reduction and it didn't do anything to players with other races.

Worth another test I suppose.

With Sharkfang

* Initial Damage: 85 Slash Physical, flags: , sk: null, wep: Longsword / /obj/items/equip/weapon/swords/longsword
* Critical check: 34 Critical VS 63 Critical Evade. (85) * spec_flat_reduc was 0. (85)
* amp_multi was 1. (85)
* reduc_multi was 59.8953. (50.911); MAG DEF, 17.1 PHYS DEF, 72.25 REDUC
* elem_reduc was 0. (50.911) * armor was allowed. armor_reduc was 14. (36.911)
* Final damage was: 36.

Without Sharkfang

* Initial Damage: 85 Slash Physical, flags: , sk: null, wep: Longsword / /obj/items/equip/weapon/swords/longsword 
* Critical check: 34 Critical VS 63 Critical Evade. (85) * spec_flat_reduc was 0. (85) 
* amp_multi was 1. (85) 
* reduc_multi was 82.9. (70.465); MAG DEF, 17.1 PHYS DEF, 100 REDUC 
* elem_reduc was 0. (70.465) * armor was allowed. armor_reduc was 14. (56.465) 
* Final damage was: 56.

So it seems I was either full of shit back then or this has changed since the last time I tested it but! It seems like anti-racial items indeed work on players and can stack. This makes Sharkfang Necklace 27.75% DR on its own against Chimeras that happened to take too many snacks due to the fact it works against fish and shark both.

At the very least, this should be changed so it can't be stacked.