When playing laning phase in any game, you really just want to farm up and poke, Seraphine will grab most of the CS while poking down her enemy with Q and E, while Sona will try getting CS with Relic Shield, mainly Cannon Minions and Melee Minions. If they disrespect your damage, you can go for a cheesy kill. A kill early on a scaling bot lane can lead to you snowballing your lead into teamfights. You really just want to safe, while poking them with your Seraphine Q when they walk up for CS, and if they are low HP and still in lane, try zoning them off of CS. You may not have kill pressure, but you zoning them off of CS can lead the enemy ADC to lose CS and EXP. In short, play safe, try not to die, poke, and scale up.

Either one of 3 things has happened at this point, you lost your turret, you got enemy turret (very unlikely), or both sides have their turret still. If you lost your turret, farm the bot wave as much as possible while still trying to group with your team for Dragon Fights, and other small skirmishes. If you won lane, Seraphine and Sona can just run around the map, forcing fights that with their heavy CC and insane speed. Winning lane is unlikely, but if you do end up winning laning phase, it's basically a free win, you scale harder than most champions and your healing and shielding in teamfights is unmatched. If you are even in lane, continue farming and scaling up, continue poking the enemy as much as possible from a safe distance, this will eventually lead to teamfights that are so one sided, its unfunny.

At this point in the game, you should constantly be grouping with the team. Seraphine and Sona have so much damage, healing, shielding, and MS boosts, that losing team fights will suddenly become one sided, in your favor. The main combo that you want to be doing is Sona W + Seraphine W, the heal+shield on Seraphine will let her use her empowered W, which will basically cast a 15 second redemption on your team + an omega shield. Both Seraphine and Sona Q deal great AoE damage in teamfights, especially Seraphine Q, which deals bonus magic missing % health damage. Seraphine E helps your team catch up to speedy targets or helps your team lock down the enemy ADC or main threats, Try opening up the teamfight with a Seraphine R, into an Echoed E, which will stun multiple targets, leaving a lot of champions up close to you, but with low HP. Sona + Seraphine Ult is devastating, Sona Ult by itself is already game changing, but along with Seraphine Ult, you can pull off some crazy Wombo Combos in teamfights.

I made this thing just for fun, sorry if its not the most visually appealing guide on Mobafire, but anyways, hope you guys enjoyed reading this short summary/guide on how to play and unleash Seraphine + Sona bot.