Subterranean Assault If, when a Trygon (or Trygon Prime) deploys via Deep Strike, it scatters on top of
impassable terrain or another model (friend or foe), reduce the scatter distance by the
minimum required to avoid the obstacle.
After the Trygon (or Trygon Prime) has emerged, mark the position under the creature's
base with a suitable marker - this represents the tunnel left by its emergence. Any
friendly Tyranid Infantry unit that arrives from reserve in subsequent turns may emerge
from the Trygon's tunnel instead of arriving from reserve as normal. Only one unit may
emerge from each tunnel marker each turn.
If any unit chooses to do so, place the entire unit so that all of its models are wholly
within 6" of the centre of the marker and in unit coherency. These models cannot be
placed within 1" of enemy models or within impassable terrain; if any models cannot be
placed, these excess models are removed as casualties. A unit may not move or charge on
the same turn it arrives from a Trygon's tunnel, but may shoot or Run.
Instinctive Behaviour - Feed 1-3 - Cannibalistic Hunger: The unit immediately suffers a number of hits equal to
the number of models in that unit. These hits are resolved using the unit's majority
Strength (if drawn, use the highest) and AP-. Wounds are allocated by the owning player
and armour saves (but not cover saves) may be taken. After resolving casualties (if any)
the unit can do nothing else until the end of its turn. Units consisting of only a single
model treat this result as Devour (below), instead.
4-5 - Devour: In the Shooting phase, the unit cannot shoot or Run. In the Assault phase,
if the unit is able to declare a charge, it must do so against the closest viable enemy unit.
If the unit cannot declare a charge, it does nothing in the Assault phase.
6 - Kill: This follows all the rules for Devour (above). In addition, the unit gains the Rage
special rule.
