Sources
CR
Type
Size
Alignment
Movement

Giant Tick

Medium Monstrosity, Unaligned

Armor Class 14 (natural armor)
Hit Points 52 (7d8 + 21)
Speed 30 ft.
STR
16
+3
DEX
10
+0
CON
16
+3
INT
2
-4
WIS
10
+0
CHA
2
-4
Senses passive Perception 10
Languages
Challenge 2 (450 XP)

Actions

Proboscis. Melee Weapon Attack: +5 to hit, reach 5 ft., one creature. Hit:10 (2d6 + 3) piercing damage, and the tick attaches to the target. While attached, the tick can't make Proboscis attacks. The tick can detach itself by spending 5 feet of its movement. As an action, a creature within reach of the tick can try to detach the tick, doing so with a successful DC 13 Strength check.

Blood Drain. The tick deals 10 (2d6 + 3) necrotic damage to one creature it is physically attached to, provided that creature isn't a Construct or an Undead, or 17 (4d6 + 3) necrotic damage if the creature is a Giant. The tick regains hit points equal to the damage dealt.

Lore

Ticks the size of boars have feasted on the blood of giants for countless ages. Though these parasites are painful nuisances to giants, they can be terrible threats to smaller folk, since a hungry tick will consume the blood of any creature it can catch.