In Gloomhaven monster action logic, if a card does not print a move or attack, will the monster perform a base action?

Gloomhaven campaigns often produce monster AI disagreements: If a monster action card flipped this round only says "Heal self 2, Target self" or only says "Shield 1, apply Bless to all allies," and does not print "Move +0" or "Attack +0" at all. When it is this monster's turn to act, will it still perform the default base move and base attack printed on its stat card?