Bladecoil Serpent bug [investigating]

Opperstamper
Opperstamper Posts: 153 Tile Toppler

The card Bladecoil Serpent says When this creature enters the battlefield [...] your opponent discards Y cards [...].

When it discards, it discards from the first card in hand down to the last, until Y is met. This is a violation of the discard rule, which reads Cards that use the discard ability will, by default, discard the last card in hand [...]. If it would discard any other card, it will be specified in the text ("Discard the first card").

Bladecoil Serpent does not specify which card, so it is bugged.