Holos, reverse holos, and special cards like Pokmon V or EX are not considered standard bulk and should be sorted separately, as they sell for a higher rate
If you choose not to cast the card, it remains in exile
In Commander, where a valuable land is just a one-of in a hundred-card library, this can find you that Volrath's Stronghold, Academy Ruins, Strip Mine, or Maze of Ith that you need badly
Each time your opponent shuffles his or her hand back into his or her deck because there were no Basic Pokmon, you may draw an extra card

Advanced Search Sets Random Syntax Abstruse Archaic Academic Probation Arachnus Web Archon of the Triumvirate Arrest Avacyn's Collar, the Symbol of Her Church (playtest) Ayesha Tanaka Azorius Arrester Azorius Guildmage Azorius Justiciar Bind Bind (playtest) Bound in Gold Braided Net Brown Ouphe Clarion Conqueror Collector Ouphe Cursed Totem Damping Matrix Deadlock Trap Demotion Desert's Hold Detainment Spell Detention Vortex Disallow Disruptor Flute Dovin Baan Drana and Linvala Echo, Perceptive Prodigy Edifice of Authority Encrust Faith's Fetters Gelid Shackles Gobsmacked Gogo, Master of Mimicry Hold for Questioning Ice Cage Inaction Injunction Intercessor's Arrest Interdict Isperia's Skywatch Kang the Conqueror Karn, the Great Creator Katabatic Winds Koma, Cosmos Serpent Koma, Cosmos Serpent Krasis Incubation Lavinia of the Tenth Lawmage's Binding Linvala, Keeper of Silence Linvala, Shield of Sea Gate Lost in Thought Lyev Decree Lyev Skyknight Martial Law Mythos of Vadrok Nahiri's Binding New Prahv Guildmage Null Rod One Thousand Lashes Ouphe Vandals Peace Talks Petrified Hamlet Petrify Phyrexian Revoker Pithing Needle Planar Disruption Prison Sentence Prison Term Quagnoth Realmbreaker's Grasp Repudiate // Replicate

Not only does this not cost an extra card, but almost more importantly, you dont need to have a second blue card to be able to cast it