Virtus the Veiled [Battlebond] Friday Night Magic 2002 Allosaurus Rider's power and toughness

Allosaurus Rider's power and toughness are each equal to 1 plus the number of lands you control

Set: Khans of Tarkir Promos Type: Enchantment Rare Cost: {G}{U}{R} Creatures you control have haste

but how do we get down

Sacrifice Arid Mesa: Search your library for a Mountain or Plains card

Virtus the Veiled [Battlebond] Friday Night Magic 2002 Allosaurus Rider's power and toughnessSet: Battlebond Type: Legendary Creature Azra Assassin Rare Cost: {2}{B} Partner with Gorm the Great (When this creature enters the battlefield, target player may put Gorm into their hand from their library, then shuffle.) Deathtouch Whenever Virtus the Veiled deals combat damage to a player, that player loses half their life, rounded up.