winter wyvern: queen bitch of long-range harass and support. can freeze your friends and make them immune to physical damage. can make enemies whack eachother with sticks
phoenix: caaw caaw muthafucka. aoe damage and teamfight control. she flies around and spreads her flamey dot damage on anyone, and shoots her babies out to make everyone attack as slow as tiny. she can also shoot laserbeams that heal your team. she turns into an egg dealing big teamfight damage, coming back to life at 100% hp/mana and stunning everyone at the end. also resets your cds.
oracle: i went back in time and fukt ur mum hero. has a purge that roots. can hurt... or heal! with his nuke. it hurts first, but then heals for more than it hurt over time. he can also place a cute binding thingie that won't let you attack but makes you immune to magic damage. his ulti is like if you had an abaddon on -wtf mode spamming aphotic shield on you, preventing all damage taken and repeatedly cleansing you of debuffs, except at the end of it you take whatever damage you were dealt. oh also all healing is amplified while you're being ulti'd by oracle