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Argentum Masticore

Artifact Creature — Phyrexian Masticore
Argentum Masticore
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Argentum Masticore

First strike, protection from multicolored At the beginning of your upkeep,sacrificethis creature unless youdiscarda card. When youdiscarda card this way,destroytarget nonland permanent an opponent controls with mana value less than or equal to the mana value of the discarded card.

Card Information

Color: C
Identifies: C
Cost:
CMC: 5
Types: Artifact Creature
Subtypes: Phyrexian Masticore
P/T: 5 / 5
Rarity: rare
Languages:
Layout: normal
Rank:
#9,351
Saltiness:
0.33 / 4.0

Official Rulings

2023-02-04
Notably, this means that you may discard a card to keep Argentum Masticore on the battlefield even if there isn't a legal target for that second triggered ability. In that case, no players may respond to the second triggered ability and it does not resolve.
2023-02-04
You don't choose a target for Argentum Masticore's upkeep triggered ability at the time it triggers. Rather, a second "reflexive" ability triggers when you discard a card this way. You choose a target for that ability as it goes on the stack. Each player may respond to this triggered ability as normal.