The build I’m going with is WIz2-Linker2-Thauma1-Sorc1-Necro3 or Wiz2-Linker3-Sorc1-Necro3 and here are the questions. How important is thauma’s swell left attribute for summon damage/defense ?. What are the attack properties of necro/sorc’s pet (needed to know if they will benefit from linker3’s spirit shock mdef reduction.
imo linker with summons is a bad idea. summons will waste your JP for less then optimal damage usually.
summon damage type gains nothing from spirit shock (well okay probably except some magic demons for sorc, like froster lord or tomb lord, but skeletons surely not)
thaum swell attribute is nice. 10% damage is always good to have
if you go full summoner i’d say you change linker to something else.