Secret Lair Drop

Creature — Human Wizard

Prowess
If a source you control would deal noncombat damage to a creature an opponent controls, put that many -1/-1 counters on that creature instead.

Soul-Scar Mage

Enchantment Creature — Nymph Dryad

You may play an additional land on each of your turns.
Lands you control are every basic land type in addition to their other types.

Dryad of the Ilysian Grove

Creature — Snake Shaman

Sacrifice this creature: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Sakura-Tribe Elder

Creature — Spirit

Flash
Flying
When this creature enters, exile target spell with mana value 4 or less.
When this creature leaves the battlefield, the exiled card's owner may cast that card without paying its mana cost.

Spell Queller

Artifact Creature — Shapeshifter

As this creature enters, choose a creature type.
This creature is the chosen type in addition to its other types.
Each other creature you control of the chosen type enters with an additional +1/+1 counter on it.