LankeOnLuck

Brave the elements/dramatic rescue/gainsay/mizzium skin/negate/rootborn defenses/gift of immortality/indestructibility are all good cards for defending your creatures.

Bident of Thassa could be pretty good at just refilling your hand, so if they do use a board sweep, you already have a full hand again ready to be played.

Just some suggestions that came to mind :)

Good point

16 creatures in the deck, 12 with heroic... You might not always get to play your heroic creatures without them being removed with burn or kill spells, so just make sure to keep something for that at all times. Counterspells might be a problem too. Not the absolutely strongest deck against control (which is what I'm currently playing) but I'm sure it would be just fine or even good against like 95% of all the other decks.

All in all, the deck looks fine, just make sure to play smart and you win ;)

was about to say this, drop 6 cards, add 2 lands and you have at least a bit better chance at casting stuff. Probably will never get to cast it even then because you have no card draw to get to your lands at a reasonable pace.

or you just, you know, use intimidate creatures and walk around it. Having this deck go up against a non budget deck would be unfair to begin with, and I don't think a whole lot of budget decks will run multicolor black and then something else in perticular, at least not something that is too dangeous (given that it's budget).

you could also put in, like, 1 or 2 islands, just so you could randomly cast the "far" part too. Almost all black cards in the deck only require 1 black mana, so having 1-2 islands wouldn't hurt you, really. Even 3 or 4 might be ok, but that's going a bit far imo.

Agree with this. Don't see this deck ever needing 22-23 lands.

<3 Love grixis control! In other words, love this deck! :D

well, in that case it'd be better to just suggest Cursecatcher rather than adding one drops. It makes it sound as if you're sugesting other 1 drops are worth having in the deck.
I agree though, Cursecatcher is really good. Wish I had a playset of them for my mer deck..

fair enough

Merfolk decks usually end up with a bunch of 2 and possibly 3 drops and that's because there's not a whole lot of good 1 drop merfolk. I can think of one atm and that's Cursecatcher

so, if the elementals are an added bonus, then you're basically saying that you're playing the card because it's a 4 for a 2/1 pro red? That's pretty bad imo.
You don't think of the elementals as an added bonus, they're what makes or breaks the card and in this case, you're throwing it into a merfolk deck where you could have countless of other things that would work better with your overall deck.
Besides, the only thing that matters for devotion is that card and it doesn't fit it's tribe.

Thassa, cryptic command and some way of giving islandwalk is a must in the mainboard. Thing is, Master of Waves is not meant to be played in a merfolk devotion deck, he's meant to be played in a blue elemental devotion deck.

Not really aggro, that's more of a combo card. The mana it costs to play the Prophets is a lot and you require a merfolk to champion to play it (can turn out fr the better in some cases). It's a rediculously good threat though.
In terms of it being a combo card, you want to make the prophet unblockable and have a token summoning card to spawn tokens to sac.

This would be eaten alive by more serious players. Some players are on budgets, ya know.

Spreading Seas > Sea's Claim

except making your opponent draw their entire deck.

Archangel of Thune makes Azorius Charm's first mode actually good. The Archangel is also really good on its own. Sphinx's Revelation also gives counters.
You don't have any lifelink creatures, sure, if that's enough for you to not run it, it's up to you.

There are many ways for the enemy to simply remove spreading seas. As a merfolk player myself, I always go up against someone who has ways of removing them. This is because people will start to figure out ways to remove them. Although it will work in the beginning, you'll find yourself not having enough enemy islands for your army to be unblockable. Having at least 1 Will is neccecary. (3 is too many though, that you are correct with).
Although he doesn't have any way of tutoring them, so he might be better off without them.

Livewire Lash + Gigadrowse