And here it is:
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Sliver, Heart
Medium Aberration (Extraplanar, Sliver)
Hit Dice: 3d8+3 (16 hp)
Initiative: +5
Speed: 30’, Climb 30’,
Armor Class: 14 (+1 Dex, +3 natural), touch 11, flat-footed 13,
Base Attack/Grapple: +2/+7 (+4 grapple bonus)
Attack: Claw +3 melee (1d6+1)
Full Attack: Claw +3 melee (1d6+1) and bite –2 melee (1d4)
Space/Reach: 5’/5’
Special Attacks: -
Special Qualities: Shared Ability,
Saves: Fort +2, Ref +2, Will +4
Abilities: Str 13, Dex 13, Con 13, Int 6, Wis 12, Cha 8,
Skills: Balance +2, Climb +10, Jump +2, Listen +4, Spot +4, Swim +2,
Feats: Alertness, Combat Reflexes, Improved Initiative (b),
Environment: Any
Organization: Swarm (20-80) or Hive (several thousand slivers of various types and one queen)
Challenge Rating: 2
Treasure: None
Alignment: Always Neutral
Advancement: -
Heart slivers look like they are covered in bony plates, and are usually white or a pale gray in color. They usually reach about 4’6’’ in length.
Combat:
Heart slivers are among the most aggressive of all slivers, attacking all non-sliver creatures on sight.
Shared Ability (Ex): All slivers within 60’ of a heart sliver gain access to the Improved Initiative feat, as though they possessed it themselves.
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Comments are appreciated, as is constructive critizism. Baring any unforseen hidrances, I'll post the Muscle Sliver on the 24th.
Edit: Fixed the CR.