mtg ixalan most valuable cards expensive in The Lost Caverns of My Top 10 Cards for

Aetherdrift - Start Your Engines // Max Speed Best card: Mendicant Core, GuidelightMendicant Core, Guidelight Runner-up: Samut, the Driving ForceSamut, the Driving Force "Start your engines" grants the player its first point of speed, which will increase by one during said player's turn if an opponent loses life, but it will do so only once

It begins by reducing the cost of your instants and sorceries, and if you win the coin flip after casting spells on your turn, it transforms into Ral, Leyline Prodigy, giving you even more cost reduction and spell copying that has revitalized combo strategies in Modern, where it is now a key piece in Ruby Storm lists and works beautifully when backed up by Past in Flames

It also has the benefit of giving you a free Ancestral Recall for any creature you cast with 7 or higher CMC

Lifelink means that when creatures deal damage equal to their toughness, its controller gains that much life