Secret Lair Drop

Sorcery

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

Rampant Growth

Legendary Creature — Goblin Rogue

Whenever a creature you control deals combat damage to a player, choose one —
• Goad target creature that player controls.
• Exile the top card of that player's library. Until end of turn, you may cast that card and you may spend mana as though it were mana of any color to cast that spell.

Grenzo, Havoc Raiser

Legendary Creature — Avatar

Haste
At the beginning of each player's upkeep, that player untaps Karona and gains control of it.
Whenever Karona attacks, creatures of the creature type of your choice get +3/+3 until end of turn.