If a Mountain you control leaves the battlefield between the time Valakut's second ability triggers and the time it resolves, be aware of whether that was the Mountain that caused Valakut's ability to trigger or not
Blues common creatures dont seem to support the archetype, but Id be surprised if this werent a potent addition to a UR deck
In the OCG, this card was used nearly instantly and caused a few players to top events
Graded Population Report: Alsei, the Sylvan High Protector MAZE-EN052 Visualize the distrbution of grades in the chart
Once you understand these colorful icons, you can pick up any card from any set, in any language, and know exactly how it works
The two best ones are Griffin Aerie, a two-mana White enchantment that rewards you with a 2/2 flyer on your end step if youve gained three or more life that turn, and Indulging Patrician, which makes your opponents lose three life if youve gained three or more