Hallowed Fountain [Zendikar Expeditions]Set: Zendikar Expeditions Type: Land Plains Island Mythic Cost: ({T}: Add {W} or {U}.) As Hallowed Fountain enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

where X is the total amount of mana paid this way

Set: San Diego Comic-Con 2017 Type: Legendary Planeswalker — Nissa Mythic Cost: {X}{G}{U} +2: Scry 2

Set: Limited Edition Beta Type: Sorcery Common Cost: {B} Return target creature card from your graveyard to your hand

If it's a land card

Set: Fifth Edition Type: Enchantment Rare Cost: {B}{B}{B} Skip your draw step

Activate this ability only during the end of combat step

it enters the battlefield tapped

Set: Friday Night Magic 2009 Type: Artifact — Equipment Rare Cost: {2} Equipped creature has haste and shroud

except it's an enchantment in addition to its other types

Set: Invasion Type: Sorcery Uncommon Cost: {1}{G} Search your library for any number of basic land cards

(Exile all spells and abilities from the stack

Set: Duels of the Planeswalkers Type: Creature — Elf Warrior Rare Cost: {1}{G} Cast this spell only if you've cast another green spell this turn