edhseer Commander synergy, explained
Sorcery
Mana cost: {2}{B}
Target opponent reveals their hand. You choose a nonland card from it and exile that card.
on-cast —
If there are four or more card types among cards in your graveyard, search that player's graveyard, hand, and library for any number of cards with the same name as the exiled card, exile those cards, then that player shuffles.
on-cast — searches a library
on-cast —
on-cast —
Causes: exile an artifact, exile a battle, exile a creature, exile an enchantment, exile an instant, exile a planeswalker, exile a sorcery, exile a card, shuffle a library.
Cares about: nothing.
a planeswalker is exiled — 231 cards in the game can cause this (Pick the Brain is one).
a nontoken artifact is exiled — 334 cards in the game can cause this (Pick the Brain is one).
When an artifact is exiled thanks to Pick the Brain:
an artifact is exiled — 336 cards in the game can cause this (Pick the Brain is one).
1 other card cares about it too. These are the ones with the most connections.
a nontoken creature is exiled — 995 cards in the game can cause this (Pick the Brain is one).
a creature is exiled — 1,003 cards in the game can cause this (Pick the Brain is one).
3 other cards care about it too. These are the ones with the most connections.
anything is exiled — 2,497 cards in the game can cause this (Pick the Brain is one).
a sorcery is cast — 3,720 cards in the game can cause this (Pick the Brain is one).
When Pick the Brain is cast:
424 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 (Pick the Brain is one).
When Pick the Brain is cast:
5 other cards care about it too. These are the ones with the most connections.