I go over the frequently asked questions for lifelink in MTG too
P/T Set Number 73 Language Portugus Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Pioneer, Standard Rulings (11/17/2017) Swampwalk is a keyword ability that means "This creature can't be blocked if defending player controls a Swamp." Most nonbasic lands don't have basic land types, even if they produce colored mana
Tap: You may put a creature card with converted mana cost equal to the number of charge counters on Aether Vial from your hand onto the battlefield.) This version is much more versatile since you are not locked into a single mana cost, yet it costs two more mana and is in Blue
It is weak to widespread damage like Reckless Blaze, but hey, that's absorbing a board wipe
An unusual addition is the Pristine Talisman, which produces colorless mana and gains you a little life each time you tap it
And you honestly dont need your opponents to trigger it