Mnemonic Snake of Oblivion (JRV-029 N) [Journey to Ravidra]

[Quickcast] [Vileborn] (3) (Whenever this card is targeted by a spell or ability the first time each turn >>> Each other player loses 300 life.) [Enter] Put target non-resonator spell with total cost X or less on the bottom of its owner's deck, where X is two. [Rune] U (This card gains the following text in all areas as long as there is a water rune revealed in your rune area.) - If you have three cards in your hand and the value of X in the text of an ability of this card would be determined, use the number of cards in your hand as the value of that X instead!