I'm currently playing in a mythic campaign and my character is pretty bonkers.. Not in the "OMG this is totally broken" way, but more so just to watch hilarity ensue because those bandits picked a bad fight with us. We're level 7 and mythic one, which was all I needed to be. I play a halfling bard who used to be a messenger for the order of the paw (with a wolf mount and everything), but my encampent ended up being overrun with undead before the other PCs saved me, afterwards allowing me to tag along to repay them, and I just kinda stuck around since we ended up going mythic. 3 of my 4 feats were Nature Soul, Animal Ally, and Boon Companion to get access to a full progression Wolf, and my 4th feat was lingering performance which effectively gives me 50+ rounds of inspire courage each day (which buffs my wolf's combat potential). For mythic, my feat was dual path to be a Guardian and a Archmage, taking Beast's fury and Wild Arcana as my pathway selected abilities. On top of that, I took Extra Mythic Points as my path ability to increase my total number from 5 to 7, thus giving me more of beast's fury and wild arcana per day. Essentially I get 10 3rd level spells at lvl 7. Combat is such a pain in the ass for us now.

My opening turn is as follows: (Bard): Cast haste! > Start performance > swift action to spend my mythic point, use Beast's fury. (Wolf): Use immediate action to move 80 feat (because of haste), make an attack, then trip. > Oh.. He still gets the REST of his actions (and the extra attack from haste). Full round, at +4 since the are prone (or move to the next target if multiple enemies)> ends up being like 3d8+32 or something as a full round, and can set up 3 different prone enemies for our paladin and combat druid. The bard still has an option to cast saving finale as well if someone needs to reroll a failed save, and the rest of my team now has 3 tripped enemies, haste, inspire courage, and a frontliner already taking hits for them. And that's not including mythic fireballs or cleric spells.