edhseer Commander synergy, explained
Instant
Mana cost: {2}{U}
Look at the top four cards of your library and separate them into a face-down pile and a face-up pile. An opponent chooses one of the piles. Put that pile into your hand and the other into your graveyard.
on-cast — puts cards into your hand
on-cast — mills a card
Causes: mill a card.
Cares about: nothing.
an instant is cast — 3,931 cards in the game can cause this (Riddles in the Dark is one).
When Riddles in the Dark is cast:
427 other cards care about it too. These are the ones with the most connections.
a card in a graveyard — 7,589 cards in the game can cause this (Riddles in the Dark is one).
434 other cards care about it too. These are the ones with the most connections.
anything goes to a graveyard — 7,589 cards in the game can cause this (Riddles in the Dark is one).
When a card hits the graveyard thanks to Riddles in the Dark:
7 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 (Riddles in the Dark is one).
When Riddles in the Dark is cast:
5 other cards care about it too. These are the ones with the most connections.