Riverwise Sentinel

Singer of Swift Rivers is a compact utility piece for Merfolk and tempo shells. The card name signals its role on the stack. With flash you can deploy it on an opponent turn to protect a key creature and to surprise-block or untap with a response. The shield counter effect buys a creature time against removal or a lethal hit and meshes cleanly with sacrifice engines or creatures that benefit from being attacked or targeted.

Beyond protection, the card grants you a persistent advantage by letting you cast Merfolk spells as though they had flash. That simple line enables flexible sequencing and trick plays around combat math. In Commander games this translates to better timing on lord effects and more reliable interaction. This copy is Light Play condition and comes from Commander The Lost Caverns of Ixalan so it is suitable for both play and a focused collection.

Card Details:

• Mana Cost – {1}{G}{U}
• Card Type – Creature
• Subtypes – Merfolk Shaman
• Card Text / Rules Text (Printed) – Flash. When Singer of Swift Rivers enters the battlefield, put a shield counter on another target creature you control. (If it would be dealt damage or destroyed, remove a shield counter from it instead.) You may cast Merfolk spells as though they had flash.
• Power / Toughness – 3/2