Simian Spirit Guide

Thrill of Possibility

As an additional cost to cast this spell, discard a card.
Draw two cards.

Triskaidekaphobia

At the beginning of your upkeep, choose one —
• Each player with exactly 13 life loses the game, then each player gains 1 life.
• Each player with exactly 13 life loses the game, then each player loses 1 life.

Coldsteel Heart

This artifact enters tapped.
As this artifact enters, choose a color.
{T}: Add one mana of the chosen color.

Hidetsugu's Second Rite

If target player has exactly 10 life, Hidetsugu's Second Rite deals 10 damage to that player.

Faithless Looting

Draw two cards, then discard two cards.
Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Ruby Medallion

Red spells you cast cost {1} less to cast.

Mountain

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Tree of Perdition

Defender
{T}: Exchange target opponent's life total with this creature's toughness.

Abrade

Choose one —
• Abrade deals 3 damage to target creature.
• Destroy target artifact.

Demand Answers

As an additional cost to cast this spell, sacrifice an artifact or discard a card.
Draw two cards.