Collectible Card Game Headquarters

Describe the Bug:
When Martyr of Bones enters the battlefield or is cast crashes game.

Which card did behave improperly?
Martyr of Bones

Which update are you using? (date, name)Which type? (duel, gauntlet, sealed deck)
Manalink dev 778ccb5 version - duel

What exactly should be the correct behavior/interaction?
Martyr of Bones

Are any other cards possibly affected by this bug?
-

Fixed only the crash in commit b8a77aa1. Still 1) autochoose graveyard even for human (auto-selects opponent's graveyard if it has any cards in it) 2) doesn't exile the targeted cards when ability resolves.

Fixed both issues in commit bc3735a.