Para blow and Precasting

Please take away precasting now. It's lame. Ok, think about it, I run up to someone with explosion precast and my vanq spear equipped, I hit them for 30 and get a para blow, release the exp and EB, that's 110 damage, Throw an exp pot in, 140 damage, throw in a lightning wand, 160 damage, Ok, so they chug a gheal pot and cast mini heal, still 130 damage, take away the lighning wand that's still 100 damage.
Ok, so now a macer runes up with with FS precast, gets a chrushing blow before you can cast mini heal. 90 damage yay.
Ok, so a hally mage runs up, ect ect ect. Plz. =[