Typical [[Avatar of Earth]] mid-range deck.

There are not many game finisher, so use [[Blink]], [[Flanking Maneuver]], [[Grapple Shot]] and [[Common Sense]] wisely. Yes, there is only one [[Common Sense]].

Stealth: Don't really care about stealth, will probably force the stealth unit to block (only 2 sites can help with it). However [[Infiltrate]] does hurt.

Airborne: Don't have much to deal with airborne unit actively

Water: Most likely focus on your avatar and minion to defend your avatar

Healing:

[[Ring og Morrigan]]
[[Angel's Egg]]: Probably don't want cast it if you cant put it underground most of the time
[[Divine Healing]]
[[Daperyll Vampire]]
[[Sir Galahad]]: replaced one Daperyll Vampire because I felt 4 defense dies too easily to damage
[[Holy Ground]]
[[Pillar of Zeiros]]

Minions:

[[Highland Princess]]: Mostly going for Amulet of Niniane or Ring of Morrigan rather than the Cores. The only minion that [[Deathspeaker]] can take advantage of.
[[Frontier Settlers]]: During 40/20 era, I would mulligan hard for one. Using this instead of [[Land Surveyor]] because if used successfully it saves you a turn from drawing and playing a site, if killed, it took a killer spell from your opponent's hand.
[[Royal Bodyguard]]: Great 4/4 for 4 with damage saving ability. Probably want to cast this before Lady Iseult and Vivien to draw kill spell out from your opponent's hand
[[Castle Haunt]]: Great early threat, not so useful at end-game. Second turn if with Tower
[[Cave Trolls]]: Can be searched with Common Sense to deal with Burrow minions such as [[Root Spider]], otherwise can be replace with [[Bluecap Knockers]]
[[Root Spider]]: Place it under your avatar and start smacking away
[[Pudge Butcher]]: GET-OVER-HERE
[[Atlas Wanderers]]: A big body that allow you to rearrange bad placement of sites or move other Earth site closer to your avatar
[[Sir Bors the Younger]]: The only minion that can deal with airborne other than the vampire
[[Lady Iseult]]: Allow free trade of minions or just simple recycle
[[Vivien the Enchantress]]: One 7 power avatar is not enough? Why not two?

Questionable Minions:

[[Field Laborers]]: Allows you to play two 4 cost spells in a turn, but have not proven useful yet
[[Overbearing Bailiff]]: This is just for fun, feel free to replace them. Basically there are 2 ways to use them
Have one out on turn 3, then place [[Postern Gate]] beside it on turn 4 and start smacking for 7 a turn. But if this cannot be done by turn 6 this is probably useless.
Equip with [[Fail-not Bow]] and you own the column
[[Sir Perceval]]: The ability is mostly useless unless you can get him out before there are much sites on board. Just a good 4/5 for 4

Magic:

[[Pendragon Legacy]]: Simply for card draw with possibility of recycle your Lady or Vivien
[[Flanking Maneuver]]: Just something different and out of expectation from [[Blink]] and still draws you a card
[[Earthquake]]: Other than a great kill spell, ability to rearrange site is most valuable

Artifact:

[[Amulet of Niniane]]: Stop those annoying burn spells
[[Ring of Morrigan]]: Heal and chip damage win you the game
[[Goswhit Helmet]]: Able to attack an annoying minion without taking damage can always be good
[[Fail-not Bow]]: Long range Avatar of Earth is scary

Site:

[[Annual Fair]]: Just a flexibility on threshold. Can probably be replace by something else.
[[Impenetrable Copse]]: Place on your avatar or in front to stop those annoying projectile magic
[[Pebbled Paths]]: Place front and center to stop Charge minions for free damage
[[Postern Gate]]: Combo with Overbearing Bailiff, otherwise replace with any utility site will do
[[Rift Valley]]: Great Earth site that can be squeezed-in close to your avatar or cut out you opponent's water body
[[Smokestacks of Gnaak]]: Sometimes you just have turn off those annoying site ability or stop Roots' playability. Will probably mulligan this away if drawn on open hand

AoE Midrange

@lunaspeed