Axgard Cavalry

{T}: Target creature gains haste until end of turn. (It can attack and {T} this turn.)

Boulder Rush

Target creature gets +2/+0 until end of turn. (Then exile this card. You may cast the creature later from exile.)

Rimrock Knight

Rimrock Knight // Boulder Rush

Mountain

Breakneck Berserker

Guardian Gladewalker

Changeling (This card is every creature type.)
When Guardian Gladewalker enters, put a +1/+1 counter on target creature.

Forest

Vault Robber

{1}, {T}, Exile a creature card from your graveyard: Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

The Lady of Otaria

You may tap three untapped Dwarves you control rather than pay this spell's mana cost.
At the beginning of each end step, if a land you controlled was put into a graveyard from the battlefield this turn, reveal the top four cards of your library. You may put any number of Dwarf cards from among them into your hand. Put the rest on the bottom of your library in a random order.

Seven Dwarves

Seven Dwarves gets +1/+1 for each other creature named Seven Dwarves you control.
A deck can have up to seven cards named Seven Dwarves.