Cruel Sadist [Magic 2015] Elf Wizard "Will not the mountains quake

"Will not the mountains quake and hills melt at the coming of the darkness

Am I missing anything

Whenever a source deals damage to Phyrexian Obliterator

Set: Masters 25 Type: Creature — Merfolk Rogue Rarity: Uncommon Cost: {1}{U} {T}: Draw a card

Set: Conspiracy: Take the Crown Type: Sorcery Rarity: Rare Cost: {1}{R} You may reveal a sorcery card you own from outside the game and put it into your hand

Cruel Sadist [Magic 2015] Elf Wizard "Will not the mountains quakeSet: Magic 2015 Type: Creature Human Assassin Rarity: Rare Cost: {B} {B}, {T}, Pay 1 life: Put a +1 +1 counter on Cruel Sadist. {2}{B}, {T}, Remove X +1 +1 counters from Cruel Sadist: It deals X damage to target creature. Face of innocence. Hand of death. Designed by Edmund McMillen