Increase its speed by 30 feet.
Stand up as a swift action without provoking an attack of opportunity.
Make one extra attack as part of a full attack action, using its highest base attack bonus.
Gain a +2 bonus on attack rolls and a +2 dodge bonus to AC and Reflex saves.
Cast a single spell of 2nd level or lower as if it were an enlarged, extended, silent, or still spell.
Affected creatures can choose two of the spell’s bonuses each round rather than one.
As long as you choose different metamagic feats, could you choose the final option twice and say enlarge and extend a spell?