Synthesist

Nice, I'll add it to sideboard.

Interesting, With the Bloodbond March I'm not too worried about bringing my rats back as much as I would be worried about what my opponent brings back, and having to splash a color for that, but that does make them "more relentless".

The Swarmyards, however, look great, hadn't noticed them before, I'll add some for sure.

Yah, there are enough red variants to do a solid red version, looks good.

Good card, could work, sub a few in for something weak like the rhystic syphon. Not a fan of having to discard myself though.

Nice list, fun cards, these are all right within the Deck Theme. Let's see, for this deck ....

For the Book Burning, they would just mill the 6, and since the deck won't mill them out, that doesn't go very far.
The Breaking Point could work at the right time, but the downside may be too much.
Lava Blister also seems 50/50, you don't know if you'll see non-basic land ahead of time, though a portion of people use them regularly, and it does fit with the dwarven driller.
Molten Influence is the best one in this list, fits right in.
Tyrannize is a bit expensive: since the deck isn't ramp, by the time you cast it, there's a good chance they wont have many cards. If they are holding 1-2, you could have them discard for 2 mana rather than 5.

I think that's a lot nicer , in that case, but then you have to cut 4-6 cards. What did you remove ? For me, it seems the Cathedral Sanctifiers would be the next to go.

Of course ! Thanks, how could I forget about that.

Looks good, the only thing that stood out to me for a critique, was the 2 x Mwonvuli Beast Trackers. They just seem weak / redundant to what mechanics you already have. I'd drop those 2, and add 2 more Wall of Omens instead.

Or, I guess, if you're really trying to use the trackers to tutor the slime, you could cut back on the elvish visionary or borderland rangers by 2 a piece, and add the 2 more trackers permanently, as well as the 2 more walls of omens. But, idk, just theory nitpicking.

Thanks. I suspect there are other "choice" decks out there, but I started coming across a lot of black and red choice cards that seemed like they would work together and wanted to see what they looked like in a deck. This is what I have so far. A bit creature light, but I think it could work. I'll have to run some test games.

Drop the 2 elves, the 4 Noble Hierarchs, and 2 Battlewand Oaks, and add some Woodfall Primus, some Orchard Wardens, and some Cream of the Crops.

Some giant cards for consideration:

Sun Titan, Furystoke Giant, Wandering Graybeard, Borderland Behemoth (already suggested by jestersmind), and Feudkiller's Verdict.

It definitely looks like you have a few weaker "filler" giants you could swap for these.

Looks like fun, here's my feedback:

Drop 3 x Rumbling Baloth, you already have enough better creatures of this size and mana cost, you would rather see other cards.
Drop 3 x Giant Growth, your stuff is/will be big enough, you would rather see rancor or the soulbond from wolfir silverheart.

This opens 6 card slots:

Add 2 more Gyre Sage, 2 more Rancor, 1 more Elvish Mystic, and 1 more Primeval Bounty

Lastly, at that point, you may even consider swapping the 3 x Primeval Bounty for either 3 x Deaths Presence or 3 x Growing Ranks. The Deaths Presences seem stronger to me for that deck. Anyway, hope it helps.

Ghave + Juniper Order Ranger + Earthcraft = Infinite Saprolings

Unfortunately, Earthcraft is going up in price. I think it's around $15 at the moment. However, the Juniper Ranger isn't expensive and helps with counters.

*Doh - edited afterwards - you have Juniper in sideboard, didn't see earthcraft though, anyway, gl.

Looks good as it is, that being said, here's one critique for some feedback.

I would want at least 1 more Mikaeus and 1 more Thraben if not 2 more of each. (however these are falling out of standard play)

Consider increasing your come into play triggers, using some Voidwalk, Deputy of Aquittal, and/or Wake the Reflections. (these will stay in standard)

The elder cathars, geist honored monk, lyev skyknights, and unruly mobs seem like your weaker cards. I would drop some of those for the above mentioned cards. ( or keep the skyknights and drop older cards if you are trying to rotate into next standard cards)

Looks good overall, but since you're looking for critique...

8 creatures isn't usually enough, you could easily go a whole game without seeing one.
No low drop creatures or creatures with flying.
Too much counter maybe.
No card draw.

Suggested Fix:

Get rid of 4 x Essence Scatter or 4 x Render Silent (downsides - scatter is just creatures, for render there's cancel and silence).
Which ever one you keep, drop 1 card, and go down to 3 of them. Drop 1 cancel, down to 3.
This opens 6 slots:
Add 3 x Judges Familiar - low cost creature flying cancel
Add 3 x Divination, Opportunity, or Azorius Charm - card draw

Hope that helps.

I don't think you get infinite, the splinter twin doesn't copy that ability, check rulings. By turn7, you could get a dragon with about 16 counters on it, but not infinite I think.

Looks Creature Heavy and not much creature synergy.
With Master of Cruelties you need more unblockable, like a Whispersilk Cloak.
Viashino Fangtail is too expensive for its role in this deck, try maybe Rakdos Ickspitter.

Not a bad start, but a few glaring issues. Sure you could get a good draw, and burn through a few cards for a turn 1 Wumpus or Agent, but that's not so good when your opponent then makes you destroy it or sac. it on next turn. So it looks like you may have a bit too much mana ramp and not enough creatures. Get rid of some ramp and try adding some Dwarven Drillers, Dwarven Blastminers, or some Ravenous Baboons.

Secondly, Pillar of Flame is weak, there are better similar choices, and you're already running lightning bolts.

3rd, Swap in some Pillage which is stronger card than some of what you are using, and it gives you options.

Lastly, consider Turf Wounds , to get you some draw, and Seismic Strike which is land hate and mana fix.

After reading a new response to post 3 above, and understanding the intended use for Bazaar Trader, it looks more viable as a card choice than it did before, though personally, I'm not quite sure how I'd fit it in to my other suggested changes. Maybe only run 3 of each noggle, clearing up 3 spots for the traders, idk.

A few suggestions:

Since there are only 4 noogles, you really need to focus on their unblockable and enter the battlefield effects.
Too many cards (5 atm) , and not enough lands (2-4 short atm).
Get rid of the Dwarven Drillers ( a fun card for sure, but holding this deck back).
Get rid of Bazaar Traders, it's not doing what you want.
Add 2 lands
Trade out your 4 Mark of Mutany for 4 Act of Treason, that way you're not giving them back an extra counter.

If you want to go further:

Drop the 4 Adaptive Automaton, you're getting enough bonuses from other cards and would rather see a real noogle.
Remove 1 Liege, you only need 2.
Remove 1 Noogle Bridgebreaker you only need 3
Add 3 Crackleburr
Add 3 Riverfall Mimic

Finally, Swap out 4-6 lands for 4-6 Smoldering Spires and Soaring Seacliffs
Hope that helped