What is lifelink in mtg?

Lifelink is a keyword ability in Magic: The Gathering that causes any damage dealt by a creature with lifelink to also cause its controller to gain that much life.

For example, if a creature with lifelink deals 2 damage to a player or creature, its controller would gain 2 life. Lifelink is a popular ability in white and black cards, as it can help players stabilize their life total and gain an advantage in combat situations.

Lifelink can be a powerful ability, especially on creatures with high power or double strike, as it can quickly swing the life total in the controller's favor. Additionally, lifelink can be combined with other abilities, such as trample or deathtouch, to make a creature even more threatening in combat.

Overall, lifelink is a valuable ability in Magic: The Gathering that can provide a strategic advantage to players who utilize it effectively.