Tribal Reanimator Commanders (Scion of the Ur-Dragon, Horde of Notions, Gisa and Geralf, Kaalia of the Vast, etc.) There are a LOT of commanders well suited to tribal reanimator strategies, but the 4 I have listed here exemplify what you should be looking for when narrowing down which legendary creature should be at the helm
: This creature gets +1/+1 until end of turn
On top of all that, the card features original artwork of Pikachu by the beloved Pokmons original designer, Atsuko Nishida
My opponent had two Sunpearl Kirin and some creatures with endure effects
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