So its very common to see horror creatures with saboteur abilities (combat damage triggers) that let you mill or exile cards from opponents libraries, make them discard, and more
Keep in mind that were not talking about creatures that will gain you life through other means, like entering the battlefield or death triggers, just those with the lifelink keyword
Throughout this Digital Deckbuilding article series, red has been the least represented color, followed by white and blue
Especially at casual nightits not as though you are playing for prizes
Enchantment Karn, Scion of Urza +1: Reveal the top two cards of your library
If Wizards gives us better data (they likely wont, alas) then Ill update this with more precise and attributable numbers