Ethereal Ambush

an instant is cast — 3,931 cards in the game can cause this (Ethereal Ambush is one).

When Ethereal Ambush is cast:

1. Lunar Mystic — draws you 1 card
2. Ojer Pakpatiq, Deepest Epoch // Temple of Cyclical Time — grants rebound
3. Repeated Reverberation — copies an ability
4. Riku of Two Reflections — copies a spell
5. Sword of Wealth and Power — copies a spell
6. Gale, Waterdeep Prodigy — brings a card back
7. Harness the Storm — brings a card back
8. In the Eye of Chaos — counters a spell
9. Lilah, Undefeated Slickshot — exiles a spell you control
10. Niblis of Frost — taps a creature an opponent controls

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

anything enters the battlefield — 26,499 cards in the game can cause this (Ethereal Ambush is one).

1. Sokka, Bold Boomeranger — When Sokka, Bold Boomeranger enters thanks to Ethereal Ambush, it draws and discards
2. Sanar, Unfinished Genius // Wild Idea — When Sanar, Unfinished Genius // Wild Idea enters thanks to Ethereal Ambush, it becomes prepared

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

anything is cast — 31,128 cards in the game can cause this (Ethereal Ambush is one).

When Ethereal Ambush is cast:

1. Windrider Wizard — draws you 1 card
2. Relic Amulet — puts a charge counter on itself
3. Rockslide Sorcerer — deals 1 damage
4. Umara Wizard // Umara Skyfalls — grants flying
5. Alania, Divergent Storm — makes an opponent draw 1 card
6. Umara Mystic — gets +2/+0
7. Master of Winds — triggers

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