if you get 10-19, you gain three life and draw three cards
Loot, Exuberant Explorer, Bloodbraid Challenger, Ilharg, the Raze-Boar, and Emergent Woodwurm are all great at sneaking creatures into play without even paying for them
In addition, many of the most popular trading card product lines still provide collectors with ongoing opportunities to collect through the creation of new products that produce a sense of scarcity (i.e., limited printing quantities), attractive physical characteristics (holograms), premium (high-quality) product materials, and product lines or brand expansion for major trading card product lines (e.g., Pokmon, Magic: The Gathering, Yu-Gi-Oh)
They also give you an instant win through milling with the above combo
Making each opponent discard a card and drawing an equal number swings the card advantage race in your favor, especially if you have the mana to back up that card draw
Fealty to the Realm Fealty to the Realm is an interesting take on Control Magic that opens the door to all sorts of politics at the Commander table