Malosini vs. Malo?

[leftharted]

Hello!
Need some clarification on shaman spells. Im curious as to the difference between these two spells, and their usage in PvP.

Malosini; lvl 57, 200mana, 60 to all resists.
Malo, lvl 60, 350mana, 45 to all resists.


Is the lvl 60 one un-resistible or something? Why else would it be less of a debuff, for more mana?? Assuming malo is in fact un-resistible, would it be overkill to cast Malo, then Malosini?? Does Malosini overwrite Malo, since it is more resists??? Or, would Malo prevent Malosini from applying because its higher level??

any info is appreciated. TY!