This guide was made by Buster Wolf.

POISON

Looks like: Fighter glows green
Does: Lose life as time passes
Works on: Both fighters
Chronicle it's in: Tutorial, 3, 5, 7, 9, 10, 12, 14, 16, 19
Note: Weapons that regain life overtime can combat this and make it possible to get a perfect, weapons that lose life overtime make this worse and you'll lose life faster

DEFENSE DOWN

Does: Defensive power is lowered
Works on: Side not controlling the tower
Chronicle it's in: 2, 4, 5, 8, 12

MINUS GUARD

Looks like: Fighter glows green while guarding
Does: Lose life while guarding
Works on: Both fighters
Chronicle it's in: 3, 5, 7, 9, 17, 19
Note 1: In Chronicle 9 if you aren't in control of the tower with this effect it will work on you, but not the opponents
Note 2: In Chronicle 17 this works on you, but not Eurydice

WHIRLWIND

Looks like: Fighter gets pushed away
Does: Increase pushback power
Works on: Side not controlling the tower
Chronicle it's in: 4, 6, 8, 13, 16, 18

CURE

Looks like: Fighter glows green
Does: Heal as time passes
Works on: Side controlling the tower
Chronicle it's in: 4, 5, 6, 8, 12, 13, 15, 19
Note 1: In Chronicle 12 the tower with this effect will heal both fighters
Note 2: In Chronicle 13 regardless of who controls the tower both fighters will gain life back

QUAKE

Looks like: Announcer will countdown from 3
Does: After 1 if you are standing you may be damaged (usually happens most when you are almost dead) and will be stunned
Works on: Side not controlling the tower
Chronicles it's in: 6, 14, 15, 17
Note 1: To avoid this you must either jump, crouch guard (must guard or it will still go through) or stay in the knocked down state
Note 2: In Chronicle 14 when this is under your control it will effect both fighters not just the enemy

ALL GUARD BREAK

Looks like: Weapon will have Blue lightning
Does: All attacks will have guard break property
Works on: Side controlling the tower
Chronicles it's in: 6, 8, 12, 13, 14, 16, 19

ICE

Looks like: Blue ripples at the fighters feet
Does: Continually slide after a movement
Works on: Side not controlling the tower
Chronicles it's in: 6, 7, 8, 10, 17, 19

OFFENSE DOWN

Does: Offensive power is lowered
Works on: Side not controlling the tower
Chronicles it's in: 7, 9, 10, 13, 19

GLUE

Looks like: Fighter gets pulled in
Works on: Side not controlling the tower
Chronicles it's in: 7, 8, 13, 14, 17, 19

ALL UNBLOCKABLES

Looks like: Weapon will have fire burning
Does: Attacks can't be blocked only Just Impacted
Works on: Side controlling the tower
Chronicles it's in: 9, 13, 15, 17, 19

POWER UP

Chronicles it's in: 10, 12
I have no idea what this effect does since I've yet to fight in a tower with it

AERIAL WIND

Does: Juggles last longer, hits in a juggle do more damage
Works on: Side not controlling the tower
Chronicles it's in: 10, 13, 19
Note: In Chronicle 19 juggle time is extended outrageously a 3B from Ende will have you airborne for 5+ seconds

CRUEL SWORD

Does: SMASH + ALL UNBLOCKABLES
Works on: Side controlling the tower
Chronicle it's in: 11

SACRED FIELD

Does: ICE + HEAL
Works on: Side controlling the tower
Chronicles it's in: 11
Note: ICE works on you, HEAL works on Heal-Do

HOLY WINGS

Does: WHIRLWIND + AERIAL WIND
Works on: Side not controlling the tower
Chronicles it's in: 11

IMPREGNABLE

Does: QUAKE + GUARDIAN FORCE
Works on: Side controlling the tower
Chronicles it's in: 11
Note: QUAKE works on you, GUARDIAN FORCE works on Aege

RESERVE OFFENSE UP

Does: During Decisive Battle fighters that go 2nd-5th will have increased offense power, increasing more the farther they are on the list
Works on: Both sides
Chronicles it's in: 11, 13, 14, 16, 18, 19

PARALYSIS

Looks like: Yellow electricity on the weapon
Does: All attacks will stun
Works on: Side controlling the tower
Chronicles it's in: 12, 15, 18, 19

SEPARATE

Looks like: Fighter gets pushed away
Works on: Side not controlling the tower
Chronicles it's in: 13, 15, 16, 18
Note: In Chronicle 15 if you are in control of the tower with this effect it'll work on both fighters not just the enemy

SMASH

Looks like: Sparks on the fighters body
Does: Extra damage when hit, increase Push back power against the controlling side
Works on: Side controlling the tower
Chronicles it's in: 14, 15, 17, 19

GUARDIAN FORCE

Look like: Fighter glows fiery Red
Does: Won't flinch from attacks and can't be thrown
Works on: Side controlling the tower
Chronicles it's in: 15, 18
Note: To make the enemy flinch from attacks you need to do an attack throw, Guard Impacts won't work unless it's an effect on your weapon which you have to be guarding beforehand

DOWN LOSE

Does: First to get in a knocked down state loses
Works on: Both fighters
Chronicles it's in: 16

COIN COLLECTOR

Does: Battle turns out like the Soul Arena Mission Coin Collector you will get money equal to 10 times the amount of coins you collected (not sure, but that sound right)
Works on: Both fighters
Chronicles it's in: 17, 19

MAD STRUGGLE

Does: Offensive power is increased dramatically (about triple the original)
Works on: Side controlling the tower
Chronicles it's in: 18, 19

CURE SAPALETE

Chronicles it's in: 19
If Tomoe would stay in this tower I would get an idea of what it does…probably CURE on the controller & POISON on the opposing… that's just a guess