Kaladesh Inventions

Sword of War and Peace

Sword of War and Peace {3}

Artifact - Equipment
Equipped creature gets +2/+2 and has protection from red and from white.
Whenever equipped creature deals combat damage to a player, Sword of War and Peace deals damage to that player equal to the number of cards in their hand and you gain 1 life for each card in your hand.
Equip {2}
Trinisphere

Trinisphere {3}

Artifact
As long as Trinisphere is untapped, each spell that would cost less than three mana to cast costs three mana to cast.
"This exhibition of Nehra's Threshold Principle must be expropriated and examined for its potential applications in enforcement."
—Confiscation directive
Vedalken Shackles

Vedalken Shackles {3}

Artifact
You may choose not to untap Vedalken Shackles during your untap step.
{2}, {T}: Gain control of target creature with power less than or equal to the number of Islands you control for as long as Vedalken Shackles remains tapped.
Wurmcoil Engine

Wurmcoil Engine {6}

Artifact Creature - Phyrexian Wurm
Deathtouch, lifelink
When Wurmcoil Engine dies, create a 3/3 colorless Phyrexian Wurm artifact creature token with deathtouch and a 3/3 colorless Phyrexian Wurm artifact creature token with lifelink.
6/6