Overblaze [Betrayers of Kamigawa] 17 The heart of Ravnica disappeared

The heart of Ravnica disappeared before anyone could strike a blow in its defense

Recent research suggests these creatures were invented by Urza's and Mishra's original master

When Chrome Prowler enters the battlefield

target creature defending player controls loses all abilities and has base power and toughness 0/1 until end of turn

Whenever Icewrought Sentry attacks

Overblaze [Betrayers of Kamigawa] 17 The heart of Ravnica disappearedSet: Betrayers of Kamigawa Type: Instant Arcane Rarity: Uncommon Cost: {3}{R} Each time target permanent would deal damage to a permanent or player this turn, it deals double that damage to that permanent or player instead. Splice onto Arcane {2}{R}{R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)