Blue Seas (Modern)

Swapped out 3rd Kira for a Spell Snare -- hits snap and helix and search

Going with a third sb Kira for now until I figure out a better plan v Jeskai. Maybe negate num 2 or pierce 4. I've played with 3 Kira before a bit, it's maybe not too much. The thassa is back due to Jeskai control
6/2/18
Changed my mind on maindeck Kira. She's pretty bad against a ton of popular decks right now so sideboard feels better. Put in the last trickster for now. Cut swan song because i have negate and 3 pierce, which should be good for the MU's where I need it. Cut spell snare because i have 3 shoal in the maindeck. Added a tidebinder for humans and jund, I think due to the nature of this build (mana denial+tempo) tidebinder is better vs jund than i'm used to it being vs jund.
6/1/18
I want to play the 8th Sea because I feel like you really do just want a lot of them...in the matchups where they're bad I think it's better to plan to side them out because for the matchups where they're good (like Jund) having that consistency and finding enough is key.
5/31/18
Shipping Sygg for Merfolk Trickster #4 because the flash is decent vs Jeskai and it's just a really strong card.
It's decent at taking advantage of being ahead on board, it's a decent turn 2 play, and it's okay on its own.
Subbing in a maindeck Kira for Thassa because Jeskai is more popular. 1 Cavern for same reason.
5/14/18 a few new changes

Some sideboard choice explanations:
Swan song is a hedge for combo decks. Ad nauseam, living end, scape shift, and bogles (mostly scape shift and bogles).
Dispel is for Jeskai/burn/gds/ad naus. Could be pierce is better in that slot.
3 Gut Shot primarily for affinity and humans, and also Infect, elves.
2 ceremonious rejection/1 annul split because eldrazi and tron are naturally weak against the seas plan and annul hits much of tron's stuff anyway, both of which mitigate the downside of annul, while annul hits bogles (and master of etherium).
Spell snare for snapcaster decks, affinity, burn, etc. Honestly with 3 Shoal I probably don't need it, I have plenty of affinity sb tech and it's not the most effective against Jeskai given that I have 3 shoals, and burn is a great matchup.
1 negate/1 dispel/1 pierce for curve reasons, I want negate for scapeshift (it's fine against jace and combo decks but pierce is better against all but shift) but the cheaper is better otherwise.
1 tide binder for burn and green creature decks, altho finding slots is hard v burn.
2 Kira for Jeskai. Maybe wanna try deeproot?
Dismember for storm, affinity if they have scissors or master of etherium, humans, green decks, creature combo decks, etc
Trying 1 sygg 1 thassa main as payoffs but with tricksters instead of vapor snag I'm not sure how much I need 'payoffs' as the deck is more tempo/disruption than low curve aggro, especially with 7seas often putting us into a top deck war. Thassa is a good top deck but sygg is medium. Maybe cold-eyed selkie? (probably not). Reejerey? Maybe a Chart a Course? The 2 mana bounce spell that can scry 2 if the target is cmc 2 or less? Commit / memory (no)? master of waves? 2 GQ 1 TE make it fairly hard to cast. 20 lands Aether Vial though, and only single blue. It's good with image for sure. Monastery siege? Decent top deck (loots), decent v removal decks, awesome v burn but that's already a good MU.
Game plans 3/13/18:

Jund
plan: seas them and go under their grindy cards
side ins: kira, kopala
optional side ins: dismember, deeproot waters, shoal, tidebinder, spellskite, spell pierce, spell snare (snare is better on the draw)
side outs:
optional side outs: image, cursecatcher, spell pierce

Jace/Snap/Cryptic decks
plan: go under their value, maybe seas if their mana warrants it
side ins: deeproot waters, snare, pierce, kira, kopala
optional side ins: shoal, skite (if bolts), (better v electrolyze)
side outs:
optional side outs: seas (if their mana warrants), image, GQ (if their mana doesn't warrant),

Storm
plan: maybe seas, interact a bit. try to race
side ins: pierce, snare, shoal, dismember
optional side ins:
side outs: undoing, sygg
optional side outs: harbinger, GQ

Bogles
plan: seas them and interact with spell pierce
side ins: spell pierce, shoal, spell snare, spellskite, dismember (if kor spiritdancer)
side outs: harbingers
optional side outs: day's undoing, cursecatcher

Eldrazi
plan: seas them and race
side ins: ceremonious rejection
optional side ins: dismember
side outs: shoal, spell pierce
optional side outs:

Burn
plan: seas them, block, interact
side ins: shoal, pierce, snare, skite, tidebinder
side outs: day's undoing, sygg
optional side outs: harbinger

Tron (no eldrazi)
plan: seas them!!!
side ins: pierce, ceremonious rejection
optional side ins: snare, shoal
side outs: undoing
optional side outs: harbinger, shoal, cursecatcher

Humans
plan: seas them, your tribal deck is faster due to no hatebears
side ins: gut shot, dismember
optional side ins: snare, shoal
side outs: spell pierce
optional side outs: shoal, cursecatcher, sygg, undoing

Affinity
plan: try to race. interact with and shoal. seas creaturelands
side ins: ceremonious rejection, shoal, gut shot, snare, spellskite, dismember
optional side ins:
side outs: undoing, pierce, sygg, seas
optional side outs: GQ

Bant spirits
plan: try to race. try to seas them. play around their stuff and they should be slower
side ins: dismember
optional side ins: tidebinder, gut shot, snare
side outs:
optional side outs: seas, undoing, GQ

GDS
plan: seas them, interact with shoal, , harbinger, pierce
side ins: dismember, shoal, snare, pierce
optional side ins: kopala and kira, spellskite
side outs: sygg, undoing
optional side outs: seas

Traverse DS
plan: seas them, go under their value, use undoin to mess up GY stuff
side ins: kopala, kira, pierce, tidebinder
optional side ins: skite, deeproot waters
side outs:
optional side outs: shoal, cursecatcher

Hollow One
plan: seas them, use undoing to mess up GY, interact w shoal, pierce, , harbinger
side ins: dismember, pierce, tidebinder
optional side ins:
side outs:
optional side outs: shoal, GQ

Infect
plan: interact, seas creaturelands and pendelhaven
side ins: pierce, dismember, shoal, gut shot, spellskite, tidebinder
optional side ins:
side outs: undoing
optional side outs: image, sygg