Opponents either lose 5 life or discard a card, and neither option feels good
Priest of Titania As previously evinced, one thing that Elves do extraordinarily well is produce mana

Here are the 6 fathomless descent cards: Chupacabra Echo Matzalantli, the Great Door / The Core Song of Stupefaction Souls of the Lost Squirming Emergence Terror Tide Here are the 18 descend X cards: Akawalli, the Seething Tower Basking Capybara Bygone Marvels Chitinous Crawler Coati Scavenger Council of Echoes Didact Echo Echo of Dusk Frilled Cave-Wurm Join the Dead Malamet Veteran Starving Revenant Stinging Cave Crawler The Ancient One The Everflowing Well / The Myriad Pools Uchbenbak, the Great Mistake Wail of the Forgotten Waterlogged Hulk / Watertight Gondola Here are the 12 cards that check if you've descended this turn: Brass's Tunnel-Grinder / Tecutlan, the Searing Rift Broodrage Mycoid Canonized in Blood Child of the Volcano Corpses of the Lost Deep Goblin Skulltaker Enterprising Scallywag Molten Collapse Ruin-Lurker Bat Stalactite Stalker The Mycotyrant Zoyowa Lava-Tongue Best Descend Cards #7

For the sake of this article, I'm going to list a couple options and explain why they stand out above the rest: Avenger of Zendikar - Do you like to really swarm the board
Wizardcycling is an ability that appears in only two cards: Step Through and Vedalken Aethermage
similar to how Landing a stagger and then unleashing a series of powerful abilities was the key to victory in FF13