You can activate one ability of a planeswalker you control once a turn, but only during a main phase when you would cast a sorcery
Blake Rasmussen, Editor-in-Chief of DailyMTG.com, shares another reprint on his Twitter account, this time of Gatecrash 's Duskmantle Seer
First are enchantments that benefit you directly, either through card or mana advantages or by limiting how many creatures can attack you
Creature - Wizard Horror Color tag templates(None) Guiltfeeder Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Whenever this creature attacks and isn't blocked, defending player loses 1 life for each card in their graveyard
Every pack contains 5 cards of rarity Rare or higher and 4 Uncommon, 5 Common, and 1 Land cards, with a total of 12-13 Traditional Foil cards