Exert Influence | Sorcery | | Converge — Gain control of target creature if its power is less than or equal to the number of colors of mana spent to cast this spell. | Magali Villeneuve
Guardian of Tazeem | Creature | Sphinx | Flying
Landfall — Whenever a land enters the battlefield under your control, tap target creature an opponent controls. If that land is an Island, that creature doesn't untap during its controller's next untap step. | Zack Stella
Prism Array | Enchantment | | Converge — Prism Array enters the battlefield with a crystal counter on it for each color of mana spent to cast it.
Remove a crystal counter from Prism Array: Tap target creature.
{W}{U}{B}{R}{G}: Scry 3. (Look at the top three cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.) | Philip Straub
Scatter to the Winds | Instant | | Counter target spell.
Awaken 3—{4}{U}{U} (If you cast this spell for {4}{U}{U}, also put three +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It's still a land.) | Raymond Swanland
Ugin's Insight | Sorcery | | Scry X, where X is the highest mana value among permanents you control, then draw three cards. | Tyler Jacobson
Noyan Dar, Roil Shaper | Legendary Creature | Merfolk Ally | Whenever you cast an instant or sorcery spell, you may put three +1/+1 counters on target land you control. If you do, that land becomes a 0/0 Elemental creature with haste that's still a land. | Karl Kopinski
Bring to Light | Sorcery | | Converge — Search your library for a creature, instant, or sorcery card with mana value less than or equal to the number of colors of mana spent to cast this spell, exile that card, then shuffle. You may cast that card without paying its mana cost. | Jonas De Ro
Fathom Feeder | Creature | Eldrazi Drone | Devoid (This card has no color.)
Deathtouch
Ingest (Whenever this creature deals combat damage to a player, that player exiles the top card of their library.)
{3}{U}{B}: Draw a card. Each opponent exiles the top card of their library. | Clint Cearley
Lumbering Falls | Land | | Lumbering Falls enters the battlefield tapped.
{T}: Add {G} or {U}.
{2}{G}{U}: Lumbering Falls becomes a 3/3 green and blue Elemental creature with hexproof until end of turn. It's still a land. | Titus Lunter
Prairie Stream | Land | Plains Island | ({T}: Add {W} or {U}.)
Prairie Stream enters the battlefield tapped unless you control two or more basic lands. | Adam Paquette
Sunken Hollow | Land | Island Swamp | ({T}: Add {U} or {B}.)
Sunken Hollow enters the battlefield tapped unless you control two or more basic lands. | Adam Paquette