just read a bit and guess :o
also try somethings out if u are not sure...
but u can try this:
<skill id="282" levels="1" name="Puma Spirit Totem">
<set name="magicLvl" val="40" />
<set name="mpConsume" val="18" />
<set name="target" val="TARGET_SELF" />
<set name="reuseDelay" val="30000" />
<set name="hitTime" val="2000" />
<set name="skillType" val="BUFF" />
<set name="operateType" val="OP_ACTIVE" />
<for>
<effect name="Buff" time="120" val="0" stackOrder="1" stackType="possession">
<add order="0x40" stat="accCombat" val="6" />
<mul order="0x30" stat="pAtkSpd" val="1.2" />
</effect>
</for>
</skill>