Advice on Mythic Magus needed

[JuliusCromwell]

A while Back I made a thread about doing a mythic game well it got pushed Back am month and I have chosen to switch my build over to doing a magus.

The game will Start At level 10 and Mythic Tier 2

and i plan to play the following
Spell-slinger wizard (1) Eldritch archer magus (9)

other 2 players are doing An Arcanist focusing on Necromancy and a investigator who focuses more on alchemy side of class and poisons

I like advice on my stats (20PTB) level 10

and Advice on Feats and Mythic feat from level 1 to 20 as we plan to play out that far

[Lelomenia]

What spell(s) do you think will significantly benefit from guncasting?