Given the state of NA so far, we have a handful of support servants dedicated for specific teams. Examples: Tamamo for arts, Nightingale/ Merlin (soon) for buster, Waver/ Hans for general uses, etc. Do we have dedicated suppport for quick/crits?
Also curious to hear more ideas on support servants and the team synergies that can make use of them.
No real quick support its a large part of the reason its considered the weakest card type - possible JP will be getting one soon as a possible caster Scathach was teased which would likely fill the role of quick support. Best we have right now though is lancer Scathach with her targeted +50% quick buff and Atalante with her party wide quick buff.
Actually I forgot about Osakabehime but then she's a strong contender for worst 5* in the game and her quick buff is also her NP which is well just not great all around as your giving up doing damage for 1000 hp and 30% quick buff to party for 3 turns + 20% def boost is just not worth an NP :/ especially since buffs are better as skills so you can use them on demand/don't need to give supports cards to use them. Her skills are all very mediocre too also her bond CE boosts NP gen instead of quick cards for some inexplicable reason.
Quick, we have Scathach with her targetable quick buff, Atalante with her AoE Quick buff, and recently Alexander with another AoE Quick buff (but he's tricky since he's a Rider). But we don't have a dedicated one just like Tamamo to Arts team.
For Crits, Hans has AoE Crit buff, plus he can generates star on his own.
Another support servant that you should consider:
Mozart (1 turn AoE 44% Arts buff from 1st skill and 50 crit stars after his rank up quest from 3rd skill)
Shakespeare and Leo for their Buster buff (1 turn 40% buster buff and 3 turns 25% buster buff respectively). Shakespeare will also have a targetable NP charge and Stargen buff after rank up quest.
Helena with her all card buffs (20% for 3 turns)
For team synergies, they are already explained on this site.
