Quote from zarvlad »[quote from="Xaricore »" url="/forums/the-game/modern/established-modern/aggro-tempo/648255-merfolk?comment=9935"]As a Tron player myself I can tell you this is where Spell pierce and Deprive will help you much more than sea's claim.
You switch to being proactive and Pierce Stirrings, Sylvan scrying and even Expedition map in order to deny them T3/4 Tron. Echoing Truth helps as well to get an extra turn on an OStone.
If you seem to have trouble in a heavy Tron and Affinity meta you may want to consider ceremonious rejection, which pretty much hits all the cards of both archetypes.
I may next time keep in my two mainboard Chalice of the Void, instead of siding the out, thinking they are useless, to stop the play of Ancient Stirrings, Expedition Map, Chromatic Star, Chromatic Sphere, and any other 1 drop shenanigans. Ceremonious Rejection is not a bad idea to consider. It'll help my Affinity matchup and help with Tron as well. I have been particularly fond of 4 sideboard Sea's Claim is also really hurts Jund and Jund is always an annoying matchup being "removal.deck".
This Friday I'll run 2 Sea's Claim and 2 Ceremonious Rejection and see how it goes.