Secret Lair Drop

Legendary Creature — Demon

Flying, lifelink
Pay 7 life: Draw seven cards.

Griselbrand

Legendary Creature — Serpent

You may play an additional land on each of your turns.
Landfall — Whenever a land you control enters, you may draw a card.

Aesi, Tyrant of Gyre Strait

Legendary Creature — Vampire

Haste
{T}, Discard a card: Draw a card.
Whenever you discard a card, if it has madness, untap Anje Falkenrath.

Anje Falkenrath

Legendary Creature — Human Druid

Vigilance
Whenever you cast a creature spell, draw a card, then you may put a land card from your hand onto the battlefield.
{3}, {T}: Return target creature you control to its owner's hand.

Chulane, Teller of Tales

Legendary Creature — Elf Warrior

During your turn, Radha has first strike.
You may look at the top card of your library any time, and you may play lands from the top of your library.
{4}{R}{G}: Radha gets +X/+X until end of turn, where X is the number of lands you control.