If one or more -1/-1 counters would be put on a creature you control, that many -1/-1 counters minus one are put on it instead.

Flying You, planeswalkers you control, and other creatures you control have hexproof. {4}{G}{G}: Put a +1/+1 counter on each creature you control.

When this creature enters, you may search your library for an Equipment card, reveal it, put it into your hand, then shuffle. {1}{W}, {T}: You may put an Equipment card from your hand onto the battlefield.

This creature enters with X +1/+1 counters on it. {4}: Put a +1/+1 counter on this creature. Remove a +1/+1 counter from this creature: It deals 1 damage to any target.

Equipped creature gets +2/+2 and has protection from black and from green. Whenever equipped creature deals combat damage to a player, that player discards a card and you untap all lands you control. Equip {2}

{T}, Pay 1 life, Sacrifice this land: Search your library for a Forest or Plains card, put it onto the battlefield, then shuffle.

({B/P} can be paid with either {B} or 2 life.) Return target creature card with mana value X from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step.

Living weapon (When this Equipment enters, create a 0/0 black Phyrexian Germ creature token, then attach this to it.) Equipped creature gets +4/+4 and has vigilance and lifelink. {3}: Return this Equipment to its owner's hand. Equip {5}

Equipped creature has "{T}: This creature deals 1 damage to any target." Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery. This card enters unattached and stays on the battlefield if the creature leaves.)