Life Gain = Win

Target player gains 7 life.

At the beginning of your upkeep, if you have 50 or more life, you win the game.

Whenever you gain life, you may pay . If you do, this enchantment deals 2 damage to any target.

Indestructible As this creature enters, choose a player. Whenever this creature is dealt damage, it deals that much damage to the chosen player. : This creature deals 1 damage to itself.

Shivan Meteor deals 13 damage to target creature. Suspend 2— (Rather than cast this card from your hand, you may pay and exile it with two time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)

Flying You can't lose the game and your opponents can't win the game.

You don't lose the game for having 0 or less life. When you have 20 or more life, you lose the game. Whenever you lose life, you gain 2 life for each 1 life you lost. (Damage dealt to you causes you to lose life.)

Whenever you gain life, target opponent loses that much life.

Enchant creature Enchanted creature has lifelink. (Damage dealt by the creature also causes its controller to gain that much life.)