battle of freedom mod

hey everyone im making a mod the event team can use if they ever want to do a modded battle royal give me some ideas
i currently have
an ice axe tht freezes you so you cant move
a fire sword
a weird sword that gives potion effects
death sword that deals dammage
drill tnt
dynamite
world ender tnt
neon pink paint

bump im going to start on trying to add magic
edit: please do not make to hard to make magic attacks
edit 2: magic will require mana