You have to edit the skilleffect file to do stuff like that.
If you want to add a reminder for life turnover you should search for "SKILL_EU_WIZARD_MENTALA_DAMAGEUP_B" in skilleffect.
There should be 5 entries for that skill. In the first like you can find information about animation and in the last 4 lines about "effects".
There is a "Ready, Wait, Shot, Act_S" sequence, which will activate some effect while casting (should be ready + wait) and while "shooting" which should be shot + Act_S. If you want to add a permanent effect you have to add an "Act_L" entry to that skill. Just search for "Act_L" in that file and you will find some examples. Copy one line of your choice after that skill, rename the name to "SKILL_EU_WIZARD_MENTALA_DAMAGEUP_B" and make sure it is "Act_L" followed by "1" (it looks like there is only one animation part used for that skill).
If you want to move the effect up/down you have to go to the ".efp" colum (e.g. wizard_light_control_apply_a.efp) and add two more column to the right. It should be a vector entry e.g. 0,10,0 which you can modify to move the effect to another location. If you use "CHAR_BASE" (column 7) it should always point to your feet. You can also use "physical objects" in skills (e.g. arrows), but it might be more work. Better use any "efp" effect you like for it.
To modify the bless spell search for "SKILL_EU_CLERIC_RECOVERYA_HEALSHIELD_A" in skilleffect. There is one entry "Act_L" which should be the bless effect (cleric_devide_healshield_keep_a.efp). If you want to change the size count three colum from the right (->"none" "none" "none" ) and add "SCT_EFFECT_SCALE,1.5", which will be 1.5x size. You can modify the size as you want.
Basic tutorial: