The Gaffer's ability looks at how much life you've gained in the turn, even if it wasn't on the battlefield when you gained life. It doesn't care if you also lost life, even if you lost more life than you gained.
16-06-2023
wotc
You draw just one card, no matter how much life you've gained past 3 life.
16-06-2023
wotc
If you haven't gained 3 or more life by the time an end step begins, The Gaffer's ability won't trigger at all.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.