No matter what benefit you receive, the keyword triggers "if you gained life this turn." These two cards with the mechanic (I paired the image above with their mascot, as we only saw two cards with Infusion) show different ways you benefit from having gained life
Before 2020, the card was a bit of a dark horse selling for around $10,000, which in itself is still a hefty sum
Special Summon 3 "G Golem Tokens" (Cyberse/EARTH/Level 1/ATK 0/DEF 0) in Defense Position, also you cannot Special Summon monsters for the rest of this turn, except Cyberse monsters
It will let me play an additional land on my turn, and when it attacks I'll sacrifice a land and draw a card
Its swift and merciless abilities are enough to end the game without even having to attack itself
We were convinced that they need to transform into Sagas