phodom - flame barrier-this ability is just weak as compared to others. other 3 abilities goes with some specific item combos like -shield of fire with phodom set/aura of fire/zocmo's set/magic aura, other two also can be combined very well
fradz-double wave- not that much usefull as compared to other spells because of distance mechanics
galeoth-piercing shard-same as double wave
& about new introduced abilites idk.. because i am depending on hero abilites page.