Boar Spirit
The Three Trials Nightmare #3 (x3)
(20) 1 4 2 5
Undead.   Spirit.   Boar.  

If Boar's Guardian is in play or in the victory display, each Boar enemy gets +1

Forced: At the beginning of the encounter phase, Boar engages the player who controls Key of the Boar or is engaged with Boar's Guardian if able.