Harrow

As an additional cost to cast this spell, sacrifice a land.
Search your library for up to two basic land cards, put them onto the battlefield, then shuffle your library.

Wooded Foothills

, Pay 1 life, Sacrifice Wooded Foothills: Search your library for a Mountain or Forest card, put it onto the battlefield, then shuffle your library.

Polluted Delta

, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle your library.

Arena

, : Tap target creature you control and target creature of an opponent’s choice they control. Those creatures fight each other. (Each deals damage equal to its power to the other.)

Flooded Strand

, Pay 1 life, Sacrifice Flooded Strand: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle your library.

Shivan Reef

: Add .
: Add or . Shivan Reef deals 1 damage to you.

Llanowar Wastes

: Add .
: Add or . Llanowar Wastes deals 1 damage to you.

Tainted Wood

: Add .
: Add or . Activate this ability only if you control a Swamp.

Guard Gomazoa

Defender, flying
Prevent all combat damage that would be dealt to Guard Gomazoa.

Windstorm

Windstorm deals X damage to each creature with flying.

Vivid Meadow

Vivid Meadow enters the battlefield tapped with two charge counters on it.
: Add .
, Remove a charge counter from Vivid Meadow: Add one mana of any color.

Greater Gargadon

Suspend 10—
Sacrifice an artifact, creature, or land: Remove a time counter from Greater Gargadon. Activate this ability only if Greater Gargadon is suspended.