Play Tips: Serrated Arrows tricks: Thrummingbird can proliferate both the -1/-1 counter on a creature and Serrated Arrows itself as well as all your allies. Also remember that you can take out a 4/4 with 1 arrows and 1 warp
Serrated Arrows and Bird can add -1/-1 counters on Wickerbough elder.
You run out healer first when you are behind on board (or against burn), thrummingbird first if you are ahead on board, and the pump allies otherwise
Don't keep one landers unless they are all hydroblasts and you are playing delverfiend
Sideboarding
SB planDelver: -4 Bird. +2 Volley, +2 Elder (If you see faerie miscreant version +2 shrivel instead)
Dark Delves: -1 Elder, +2 Spellbomb, -1 Bird
MBC: (No oubiliete): +2 DD, -1 Elder, -1 Bird (Oubiliette): +2 DD, +1 Elder, -2 Bird, -1 Arrows
Familiar, +2 Spellbomb, -1 Elder, -3 Unearth, +2 Volley
Boroskitty: +3 Elder, +4 Blast, -4 Arrows, -4 Bird,
AZK: +3 Elder, -2 Bird, -1 Agony
Hexproof: +3 Elder, +2 Shrivel, -4 Arrows, -1 Unearth
Tron: +3 Blast, -4 Arrows, +3 Elder, -4 Agony
Burn: +4 Blast, -4 Arrows, -4 Agony, +3 Elder, +1 DD
Affinity: +3 Elder, -3 Unearth, -2 Agony, +2 Hydroblast
Metalcraft: +3 Elder, -3 Bird
Fog: +3 Elder, -4 Agony, -2 Arrows, +2 Spellbomb, +1 DD
Elves: +2 Shrivel, -3 Unearth, +1 Elder
DelverFiend: +4 Blast, -1 Elder, -3 Unearth
Stompy: -1 Elder, +1 Shrivel