Equipped creature has base power and toughness X/X, where X is your life total.
Equip

Artifacts you control have hexproof. (They can't be the targets of spells or abilities your opponents control.)
At the beginning of your upkeep, if you control the artifact with the greatest mana value or tied for the greatest mana value, draw a card.

: Add .
: This land becomes a 2/2 creature with all creature types until end of turn. It's still a land.

Flying
Delve (Each card you exile from your graveyard while casting this spell pays for .)

Whenever you cast a spell that's one or more colors, you may gain 1 life for each of that spell's colors. Do this only once each turn.
: Add one mana of any color.

At the beginning of your upkeep, you draw a card and you lose 1 life.

Sacrifice this creature: Prevent all combat damage that would be dealt this turn.

When this artifact enters, if it was cast, target opponent creates a token that's a copy of it.
Whenever an opponent who controls an artifact named Wedding Ring draws a card during their turn, you draw a card.
Whenever an opponent who controls an artifact named Wedding Ring gains life during their turn, you gain that much life.

Flying, trample
When Orcus enters, choose one —
• Each other creature gets -X/-X until end of turn. You lose X life.
• Return up to X target creature cards with total mana value X or less from your graveyard to the battlefield. They gain haste until end of turn.

Creatures with power 3 or greater don't untap during their controllers' untap steps.

Whenever one or more creatures you control deal combat damage to a player, tap all lands that player controls and untap all lands you control.

All lands you control become 1/1 creatures until end of turn. They're still lands.

Dragonfire Dive — During your turn, Dion and other Knights you control have flying.
When Dion enters, create a 2/2 white Knight creature token.
, : Exile Dion, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery.

As an additional cost to cast this spell, pay 3 life.
Counter target creature spell.

: This creature gets +1/+0 until end of turn.

You may have this creature enter as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary.

When this creature enters, creatures your opponents control get -2/-2 until end of turn.
Whenever a creature an opponent controls dies, that player loses 2 life.

Flying, lifelink
Pay 7 life: Draw seven cards.

This land enters tapped unless you have two or more opponents.
: Add or .

Each player can't cast more than one spell each turn.
, Sacrifice this enchantment: It deals 5 damage to any target.