Hollow Trees [Fifth Edition]Set: Fifth Edition Type: Land Rarity: Rare Hollow Trees enters the battlefield tapped. You may choose not to untap Hollow Trees during your untap step. At the beginning of your upkeep, if Hollow Trees is tapped, put a storage counter on it. {T}, Remove any number of storage counters from Hollow Trees: Add {G} for each storage counter removed this way.

It can't be regenerated

It eats and eats until the juiciest morsel it can find is itself

Sacrifice Rocky Tar Pit: Search your library for a Swamp or Mountain card

Set: Skyridge Type: Colorless Rarity: Uncommon

where X is the number of Elves on the battlefield

Just be grateful

If there are no more scream counters on it

Set: XY: Base Set Type: Metal Rarity: Ultra Rare Retreat cost: Colorless

' priceless

Set: Amonkhet Invocations Type: Sorcery Rarity: Mythic Cost: {B}{B}{B} Search your library and graveyard for five cards and exile the rest

Set: HeartGold & SoulSilver: Call of Legends Type: Colorless Rarity: Rare Retreat cost: Colorless

{T}: Kamahl