Explosion setup

What armor stats and second magic should i go for on my Explosion mage?

Attack size works pretty well with explosion magic

For second magic, fire is a popular option

Im explosion mage main. I use hard clavus chestplate, leggins, crowns/cape, powerfull power amulet and bursting sunken helm (replace with any acessory that gives attack size).
As second magic go anything heatbased.