edhseer Commander synergy, explained
Instant
Mana cost: {G}
Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle.
on-cast — sets the top of a library
on-cast —
Causes: shuffle a library.
Cares about: nothing.
an instant is cast — 3,931 cards in the game can cause this (Natural Selection is one).
When Natural Selection is cast:
427 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 (Natural Selection is one).
When Natural Selection is cast:
5 other cards care about it too. These are the ones with the most connections.