Whenever Tetsuo attacks, if it's equipped, choose one — • Tetsuo deals damage equal to the highest mana value among Equipment attached to it to any target. • You may cast an instant or sorcery spell from your hand with mana value less than or equal to the highest mana value among Equipment attached to Tetsuo without paying its mana cost.

Equipped creature gets +2/+2 and has protection from instants and from sorceries. Whenever equipped creature deals combat damage to a player, create a Treasure token. When you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy. Equip {2}

Equipped creature gets +3/+3 and has first strike. Whenever a creature dealt damage by equipped creature this turn dies, you may exile that card. If you do, create a 2/2 black Zombie creature token. Equip {2}

When Mjölnir enters, attach it to target legendary creature you control. Whenever equipped creature attacks, tap target creature defending player controls and put a stun counter on it. Then Mjölnir deals damage to each opponent equal to the number of tapped creatures that opponent controls. Equip {4}

This spell costs {X} less to cast, where X is the total mana value of historic permanents you control. (Artifacts, legendaries, and Sagas are historic.) Equipped creature gets +10/+0 and has vigilance. Equip legendary creature {2}

As long as this Equipment is attached to a creature, you don't lose the game for having 0 or less life. Whenever equipped creature attacks, draw a card and reveal it. The creature gets +X/+X until end of turn and you lose X life, where X is that card's mana value. Equip—Discard a card.

Equipped creature gets +2/+2. Whenever equipped creature dies, you may put a creature card from your hand onto the battlefield and attach this Equipment to it. Equip {2}

Equipped creature has first strike, trample, and haste. {1}: If you control Equipment named Helm of Kaldra, Sword of Kaldra, and Shield of Kaldra, create Kaldra, a legendary 4/4 colorless Avatar creature token. Attach those Equipment to it. Equip {2}

Equipped creature gets +2/+2, has intimidate, and is a black Zombie. (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.) Whenever a nontoken creature is put into your graveyard from the battlefield, you may pay {4}. If you do, return that card to the battlefield and attach this Equipment to it. Equip {4}

Equipped creature gets +1/+1 and has trample and lifelink. {1}: Permanents your opponents control lose hexproof and indestructible until end of turn. Equip {2}

Whenever equipped creature deals combat damage to a player, destroy all permanents other than this Equipment. Equip {5} ({5}: Attach to target creature you control. Equip only as a sorcery.)