edhseer Commander synergy, explained
Land
If you control two or more other lands, this land enters tapped.
static —
Add {B}.
activated {T} — adds 1 mana
Until end of turn, this land becomes a 3/3 black Beholder creature with menace and that ability It's still a land.
activated {3}{B} — turns something into a creature
activated {3}{B} — grants a keyword
Whenever this creature attacks, exile target card from defending player's graveyard.
triggered — hits a graveyard
Causes: exile a card, anything leaves a graveyard.
Cares about: nothing.
a land enters the battlefield — 1,560 cards in the game can cause this (Hive of the Eye Tyrant is one).
When Hive of the Eye Tyrant enters:
199 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 (Hive of the Eye Tyrant is one).