"For Position Only" cards were created when Wizards of the Coast was doing a test print run of Expedition Base Set
The description simply says "This Ticket cannot be used yet
Instead of being widely available in standard stores, the product may be offered through a limited application or lottery system
Phyrexia Oil Slick Cards Filter: In Stock Out of Stock Show All All variants Out of stock NM-Mint, English 1 In Stock NM-Mint, English 1 In Stock All variants Out of stock NM-Mint, English 2 In Stock NM-Mint, English 14 In Stock NM-Mint, English 1 In Stock NM-Mint, English 7 In Stock All variants Out of stock All variants Out of stock All variants Out of stock NM-Mint, English 1 In Stock NM-Mint, English 1 In Stock NM-Mint, English 7 In Stock All variants Out of stock All variants Out of stock All variants Out of stock NM-Mint, English 1 In Stock All variants Out of stock All variants Out of stock NM-Mint, English 6 In Stock NM-Mint, English 13 In Stock NM-Mint, English 4 In Stock All variants Out of stock
Wrap Up Polukranos, Unchained | Illustration by Chris Rahn Hydras are definitely playable in MTG
