It only adds colourless mana to your mana pool as standard, but youre rarely going to be playing it as Echoing Deeps
A lot of staple cards found in competitive decks to date usually run a card or two from this particular set
Now that Im seeing them side-by-side, this red sorcery is very similar to Spiteful Banditry, often wiping the board and leaving behind some Lotus Petals
You might think that the best colorless way to give double strike Fireshrieker would cost a lot, but it's just 0.49 too
For example, if you control both Zell Dincht and Exploration (an enchantment with "You may play an additional land on each of your turns"), you'll be able to play three lands during each of your turns
Example Decklist: Prowess Storm | Modern | unagieel, 5-0 MTGO League Creatures (12) 4 Clever Lumimancer 4 Leonin Lightscribe 4 Nivmagus Elemental Instants (24) 4 Flusterstorm 4 Gut Shot 4 Lava Dart 4 Lightning Bolt 4 Manamorphose 4 Mutagenic Growth Sorceries (6) 2 Assault Strobe 4 Ground Rift Lands (18) 2 Mountain 1 Sunbaked Canyon 2 Sacred Foundry 2 Steam Vents 3 Wooded Foothills 4 Arid Mesa 4 Bloodstained Mire Sideboard (15) 3 Bedlam Reveler 4 Kor Firewalker 1 Lurrus of the Dream-Den 2 Path to Exile 2 Shattering Spree 3 Surgical Extraction 1