It will remain part of the rotation for Standard for at least a few years, but even once it does, youll still be able to play the cards in formats like Modern (which uses any card released since the 8th edition of Magic began in 2003, including the sets that are still in the Standard rotation)
In The Brother's War collector boosters, there are a whopping 63 different cards that can be serialized, each numbered 1 to 500, for a total of 31,500 individual serialized cards
(If I had had my way, Annul in Mirrodin would have been "Malfunction," which would have cost and only countered artifacts.) Vampire Hexmage This card was created during development to help give more lower-rarity answers to planeswalkers
Essentially, in a table with three opponents, Ophidian Eye will grant you three card draws per spell that you cast, as long as they reach the mana value 3 requirement
Cid, Timeless Artificer Dragon's Approach Hare Apparent Persistent Petitioners Rat Colony Relentless Rats Shadowborn Apostle Slime Against Humanity Tempest Hawk Templar Knight

Hardened Academic Heroic Reinforcements Hofri Ghostforge Invasion of Kylem Judoon Enforcers Kassandra, Eagle Bearer Kolodin, Triumph Caster Legion's Initiative Lorehold Command Lorehold, the Historian Mabel, Heir to Cragflame Markov Waltzer Meddling Youths Merry, Esquire of Rohan Midnight Mayhem Mothers Yamazaki (playtest) Munda, Ambush Leader Nahiri's Resolve Nahiri, the Harbinger Nahiri, the Unforgiving Oath of Eorl Odric, Blood-Cursed Otharri, Suns' Glory Outlaws' Merriment Path of Mettle Phyrexian Skyflayer Pia Nalaar, Consul of Revival Razia, Boros Archangel Rem Karolus, Stalwart Slayer Riders of Rohan Risona, Asari Commander Scurry of Gremlins Seedglaive Mentor Sentinel Sarah Lyons Shadowfax, Lord of Horses Skyknight Legionnaire Spark Trooper Sunhome Guildmage Sunrise Cavalier Swooping Pteranodon Tajic, Legion's Edge Tenth District Legionnaire