There are a few staples that any Elf deck will love like: Elvish Archdruid Elvish Warmaster Overwhelming Stampede There are several high-power spells in the deck too, like Heroic Intervention and Asceticism to keep your creatures safe, and Genesis Wave to turn your mana into even more creatures
There are aggressive and control decks using black, blue, and white, but the only top build using either red or green right now is a ramp deck
Conclusion There you have it, a somewhat extensive list of the most valuable non-Modern legal and non-Reserved List cards
Typically a big benefit of Leyline is that is buys you the time to build out your board of further disruption
Its only drawback is, once again, the fact that the effect is tied to a creature that needs to tap to activate
Hedorah lunges at Godzilla, who attempts to bite and slash it, and it's not clear who would win the fight