Flying
Whenever Stet attacks, you may exile a card from your graveyard. When you do, Stet deals 4 damage to any target whose name begins with the same letter as the exiled card.
: Delete the first letter of target permanent or player's name until end of turn.
Illustrated by Dmitry Burmak · Unsanctioned · #57
2020-02-29
A permanent or card in another zone with no name (including face-down creatures, ____________, and ones whose name Stet has decided to fully delete) can't begin with the same letter as anything else. If _______ is exiled this way, Stet won't deal any damage. Similarly, Stet won't deal damage to any creature with no name, no matter what card was exiled.
2020-02-29
Use whatever name or names a player commonly goes by to determine what their current name is and if they should be dealt damage.