(I am aware that there is already a thread for Grixis Dragons; this deck is fundamentally different.)
Grixis Dragon Combo is a midrange deck that constantly threatens a combo win. In early turns, tokens clog up the field and stall into late game threats or the potential combo finish. Draconic Roar is one of the best removal spells in standard, killing anything up to Mantis Rider and netting value. Foul-Tongue Invocation is not particularly impressive with the many creatures that decks in the meta are playing, but a 3 mana edict that gains life and can potentially answer Ojutai certainly makes the cut. With 11 fetches, Dig Through Time can often go off as early as turn 4. This deck is particularly weak to counterspells, but right now, they are few and far between in the meta. There are many sideboard options that can be taken into account if control decks become more popular (such as Dragonlord's Prerogative) but for now, the deck prays on a lack of counterspells.
Turn three Hordeling Outburst is the main thing to keep in mine when fetching lands. Wooded Foothills can only fetch Smoldering Marsh and mountains so I often play it turn one and get a marsh. The other card with two colored mana that you want to keep in mind early game is Silumgar's Scorn. Because of Shivan Reef and the multitude of fetches, getting RR and UU available on turn 3 happens more often than not.
There is never a need to drop Dragon Tempest early, although if you have a turn 3 and turn 4 play it can be correct. It is crucial to play around Dromoka's Command here, and certainly doable.
Often times, especially against Atarka Red, you just hold back with your tokens and play the safe game until you can drop a dragon. If you consider Descent of the Dragons, it is usually more important to have extra creatures than to be swinging in and losing a couple.
As is always important with Dig Through Time, but still worthy of mention, don't cast it until you need it. Playing a DTT when you are ahead means you won't necessarily know what outs you need if you fall behind. DTT is a great way to put the combo together in a snap and getting dashable Kolaghans can be particularly impressive.
This deck plays pretty well against Crackling Doom as your five and six drops have equal or less power to your Thunderbreak Regents. Apart from that, none of your tokens care about Crackling Doom and as long as you keep it in mind when you drop dragons, it isn't a blowout.
Descent of the Dragons is primarily used on your own creatures but I've had cases where I'd rather an opponent have a dragon than one of their creatures. For example, turning a Dragonmaster Outcast into a 4/4 flyer is better than them getting a 5/5 flyer on their upkeep.
This deck is still a work in progress but I'm very happy with the progress I've made so far. I'd love to get some more people testing it or inputting ideas to try and improve the matchups. Thanks!
Grixis Dragon Combo is a midrange deck that constantly threatens a combo win. In early turns, tokens clog up the field and stall into late game threats or the potential combo finish. Draconic Roar is one of the best removal spells in standard, killing anything up to Mantis Rider and netting value. Foul-Tongue Invocation is not particularly impressive with the many creatures that decks in the meta are playing, but a 3 mana edict that gains life and can potentially answer Ojutai certainly makes the cut. With 11 fetches, Dig Through Time can often go off as early as turn 4. This deck is particularly weak to counterspells, but right now, they are few and far between in the meta. There are many sideboard options that can be taken into account if control decks become more popular (such as Dragonlord's Prerogative) but for now, the deck prays on a lack of counterspells.
3 Dragon Tempest
3 Descent of the Dragons
Tokens:
4 Dragon Fodder
4 Hordeling Outburst
Dragons:
4 Thunderbreak Regent
2 Kolaghan, the Storm's Fury
1 Silumgar, the Drifting Death
Interaction:
4 Draconic Roar
3 Foul-Tongue Invocation
3 Silumgar's Scorn
4 Dig Through Time
Lands: (25)
4 Bloodstained Mire
4 Polluted Delta
3 Wooded Foothills
2 Smoldering Marsh
2 Sunken Hollow
4 Shivan Reef
3 Island
2 Mountain
1 Swamp
1 Dragonlord Silumgar
2 Dispel
2 Fiery Impulse
3 Silumgar's Command
3 Ultimate Price
2 Sarkhan, the Dragonspeaker
1 Arc Lightning
1 Self-Inflicted Wound
Playing the deck:
Sideboarding:
VS. Atarka Red
+1 Dispel
+2 Fiery Impulse
+3 Ultimate Price
+1 Arc Lightning
-3 Descent of the Dragons (six drops are too slow here)
-2 Dragon Tempest (still useful to have one copy as it pings creatures)
-2 Silumgar's Scorn (pretty slow and not as useful as removal)
VS. GW Megamorph
+2 Fiery Impulse
+3 Silumgar's Command (great answer to Gideon)
+3 Ultimate Price
+2 Sarkhan, the Dragonspeaker (GW can't answer an indestructible 4/4 flyer)
+1 Self-Inflicted Wound
-3 Descent of the Dragons (our tokens are all spent blocking)
-3 Foul-Tongue Invocation
-2 Silumgar's Scorn
-3 Dragon Tempest (poor vs Dromoka's Command)
VS. Jeskai Black
+2 Dispel
+2 Fiery Impulse
+3 Silumgar's Command
+1 Self-Inflicted Wound (sadly poor against Gideon but necessary for Ojutai)
-3 Descent of the Dragons (they have counters SB)
-3 Dragon Tempest
-2 Silumgar's Command
This deck is still a work in progress but I'm very happy with the progress I've made so far. I'd love to get some more people testing it or inputting ideas to try and improve the matchups. Thanks!