It was a mix of some cards from the previous February preview, some new cards with details, and a few teasers with illustrations and no card text
This is a great card
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
If you choose to cast a spell for its impending cost, it will enter with a number of time counters on it
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