Played my tyrant like this:
on 40 pl set + vr buff was must (cos of p def) +12 str -5 dex -10 con (con doesnt matter on pve, dex takes off atk speed so -15 dex will slow ur solo exp speed cos of dps loss)
on 52 bw hvy set +12 str -5 con - 10 dex
60 (as soon as i started to pvp a big, but mostly exp ) +12 str -15 dex
68+ +8 str +4 con - 15 dex (pvp build)
For 40 -> 68 i recomend u setup i used, if u dont have any1 to give u heal or vr then pick full plate set on 40 instead of pl, after 68 it depends what ur cp needs, If u lack dps or u mostly exp in cp u go +12 str - 15 con, if u pvp a lot 8 str +4 con is good, If ur party miss tanky man, u can go +12 con - 15 dex