Throes of Chaos (Surge Foil) [Doctor Who]

Throes of Chaos (Surge Foil) [Doctor Who]Set: Doctor Who Type: Sorcery Rarity: Uncommon Cost: {3}{R} Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.) Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Enchanted planeswalker has "[-12]: You get an emblem with 'You may activate loyalty abilities of planeswalkers you control on any player's turn any time you could cast an instant

Whenever a player casts a black spell

they may cast a spell from among other cards exiled with Knowledge Pool without paying its mana cost

Set: Double Masters Type: Enchantment Rarity: Mythic Cost: {W} At the beginning of your upkeep

Set: Magic 2015 Type: Creature — Beast Rarity: Rare Cost: {3}{G}{G}{G} This spell can't be countered

Set: Visions Type: Artifact Creature — Phyrexian Construct Rarity: Rare Cost: {X} Phyrexian Marauder enters the battlefield with X +1/+1 counters on it

A new era in unlife begins here and now

Set: Innistrad: Crimson Vow Type: Creature — Spirit Rarity: Mythic Cost: {1}{U}{U} Flying

Set: The Lord of the Rings: Tales of Middle-Earth Commander Type: Instant Rarity: Rare Cost: {G} Split second (As long as this spell is on the stack

Set: March of the Machine Commander Type: Instant Rarity: Uncommon Cost: {1}{W}{W} Convoke (Your creatures can help cast this spell

Set: Rivals of Ixalan Type: Instant Rarity: Uncommon Cost: {1}{U} Ascend (If you control ten or more permanents

(It phases in before its controller untaps during their next untap step