Reap and Sow

a land in a graveyard — 634 cards in the game can cause this (Reap and Sow is one).

Reap and Sow puts cards into the:

1. Dread Tiller — graveyard that Dread Tiller can bring back
2. Sparring Dummy — graveyard that Sparring Dummy can bring back
3. Waking the Trolls — graveyard that Waking the Trolls can bring back
4. Soul of Windgrace — graveyard that Soul of Windgrace can bring back
5. Patient Naturalist — graveyard that Patient Naturalist can bring back
6. Blanchwood Prowler — graveyard that Blanchwood Prowler can bring back
7. Fall of the Thran — graveyard that Fall of the Thran can bring back
8. Mind Roots — graveyard that Mind Roots can bring back
9. Centaur Vinecrasher — graveyard, and Centaur Vinecrasher gets bigger
10. Terravore — graveyard, and Terravore gets bigger

121 other cards care about it too. These are the ones with the most connections.

a land is put into a graveyard from the battlefield — 636 cards in the game can cause this (Reap and Sow is one).

When a land is put into a graveyard from the battlefield thanks to Reap and Sow:

1. Vastwood Zendikon — brings a card back
2. Nissa's Zendikon — brings a card back
3. Corrupted Zendikon — brings a card back
4. Guardian Zendikon — brings a card back
5. Crusher Zendikon — brings a card back
6. Wind Zendikon — brings a card back
7. Akki Raider — gets +1/+0
8. Dingus Egg — deals 2 damage
9. Genju of the Realm — returns itself from the graveyard

1 other card cares about it too. These are the ones with the most connections.

you face a dilemma — 739 cards in the game can cause this (Reap and Sow is one).

When Reap and Sow poses a dilemma:

1. Seven of Nine — draws you 1 card
2. Elim Garak, Simple Tailor — makes each opponent lose 2 life
3. Obsidian Order Operative — makes each opponent lose 1 life

a land enters the battlefield — 1,560 cards in the game can cause this (Reap and Sow is one).

When a land enters thanks to Reap and Sow:

1. Thranduil, Sindarin Liege // Silvan Rally — makes a token
2. Silvan Reveler — returns itself from the graveyard
3. Floral Evoker — puts a +1/+1 counter on itself
4. Mole Man, Moloid Master — makes a token
5. Icetill Explorer — mills a card
6. Tato Farmer — puts 2 counters on a permanent
7. Primeval Bounty — gains you 3 life
8. Toph, Earthbending Master — puts a counter on a permanent
9. Dancing from Dark to Dawn — makes a token
10. Emeria Shepherd — brings a card back

199 other cards care about it too. These are the ones with the most connections.

a sorcery is cast — 3,720 cards in the game can cause this (Reap and Sow is one).

When Reap and Sow is cast:

1. Spellweaver Volute — copies a spell
2. Lilah, Undefeated Slickshot — gets +1/+1
3. Niblis of Frost — gets +1/+1
4. Tetsuko Umezawa, Pursuer — gets +1/+1

430 other cards care about it too. These are the ones with the most connections.