Rushing River (Invasion/Planeshift/Apocalypse) Why bounce just one creature when you can bounce a second for the cost of a land
This attack makes this card a great option for coming back from the brink of defeat, as it deals up to 380 damage if your opponent has already taken five prize cards
The copy of Pyromancy 101 created by the granted activated ability can't be taught after it resolves
These are the cards that should be coming out for different cards

Advanced Search Sets Random Syntax Ajani, Sleeper Agent Annex Sentry Anoint with Affliction Apostle of Invasion Aspirant's Ascent Basilica Shepherd Bilious Skulldweller Blackcleave Goblin Blight Mamba Blightbelly Rat Blighted Agent Blightwidow Bloated Contaminator Bloodroot Apothecary Bonepicker Skirge Branchblight Stalker Bring the Ending Caress of Phyrexia Carrion Call Chained Throatseeker Charge of the Mites Chittering Skitterling Contagious Nim Contaminant Grafter Core Prowler Corpse Cur Corrupted Conscience Crawling Chorus Crypt Cobra Cystbearer Deadly Poison Sampler Decimator Web Distorted Curiosity Duelist of Deep Faith Dune Mover Etali, Primal Sickness Fallen Ferromancer Feed the Infection Flensermite Flensing Raptor Flesh-Eater Imp Fleshless Gladiator Fynn, the Fangbearer Fynn, the Fangbearer Geth's Summons Glissa's Retriever Glistener Elf Glistening Sphere Goliath Hatchery Grafted Exoskeleton Green Dragon Hand of the Praetors Happy Dead Squirrel Hish of the Snake Cult (playtest) Ichor Rats Ichorclaw Myr Ichorspit Basilisk Incisor Glider Indoctrination Attendant Infectious Bite Infectious Inquiry Infested Fleshcutter Inkmoth Nexus Ixhel, Scion of Atraxa Jawbone Duelist Karumonix, the Rat King Kinzu of the Bleak Coven Kozilek, Compleated (playtest) Largepox (playtest) Leeches Lost Leonin Marsh Viper

The activated ability is also a nice way to stop an artifact from being permanently exiled by something like Crush Contraband or Ravenform