assuming beasted war spike:: level 9 fanat (29% skill ias), beasted ias (40 percent) is 7 frames per attack. If you add 10 or more outside ias, then you hit 6 frames per attack. a better idea would be to get beast and all the general plus skills you can get on switch (beast, lidless, maras, etc.) and prebuff to higher levels of werebear/lycanthopy. switch over to attack with a phase blade with 110 wias on it and you will hit 4 frames per attack, any aura. It has its uses, trust me.
110% IAS is needed for a druid, since druid has an inherently slow attack speed. For a pally in werebear form, only 60% IAS on a phase is needed to reach 4-frame. If 5-frame is OK, then Azurewrath with ed/ias jewel would be good.