Created for use on Arena, this deck was Standard-legal until today (and I believe will be Standard-legal in paper until Forgotten Realms comes out later this month). The goal is to ramp on turns 2 and/or 3 and start playing big creatures somewhere around turn 4 or 5, and (with the help of some card draw), almost every turn from then on.
It's 65 cards. I was planning to test it, take out a few that weren't working as well, and get it down to 60...but it functioned rather well as-is, in competitive play on Arena. Certainly it could be improved, especially for Historic format now that it's no longer Standard-legal.
The deck does well against other midrange decks, and can be competitive against aggro and control as well, though it tends to struggle more against very fast decks and decks that pack a lot of creature removal or can shut creatures down in other ways.
Key cards:
Sudden Spinnerets
and
Ram Through
are used to get rid of opposing creatures, particularly those with flying and (in the case of Ram Through) deathtouch, which can be problematic.
Tangled Florahedron
can be used as ramp, or as a land if you're short on those (the deck can struggle without 3 lands, or 2 lands and a 2-mana ramp, in the opening hand).
Field Trip
is not only ramp, it also gives access to your sideboard (lessons). Of these,
Introduction to Annihilation
is usually the best choice (or
Containment Breach
, if there's a specific artifact or enchantment you wish to remove).
Arasta of the Endless Web
is excellent against decks that rely on instants and sorceries; don't expect her to survive long (but she can help draw a removal spell that otherwise might have been saved for one of your heavy hitters).
Ironscale Hydra
or
Elder Gargaroth
can come down as early as turn four and take over a game.
Kogla, the Titan Ape
and
Thorn Mammoth
have built-in removal
Beanstalk Giant
is both a solid ramp spell and a good creature later on.
Rampaging Brontodon
and
Treeshaker Chimera
are devastating finishers
Garruk, Unleashed
pumps your creatures and gives trample to those, like
Beanstalk Giant
and
Gigantosaurus
that lack that ability.