Link Summoning is from the latest incarnation of Yu-Gi-Oh, VRAINS.
I'll be honest, of all the types of summoning, this is the one I can't quite wrap my head around.
However, for the purposes of this achievement, I found the first duel of VRAINS to be the best place to do this.
Make sure to hit
to play it as a normal duel, rather than a tutorial. I found that all I had to do was place a single monster card out (I had Positron), both summoned or set work, then assuming it survives, you can special summon from your special deck (where all the link/fusion/XYZ cards etc). You should only need one monster to sacrifice.
Sacrifice that monster, then summon your link monster, then you'll pop this,
If you're struggling with this, Playmaker also has 3 copies of the card Scapegoat in his deck. If you get one of these, activate it to create 4 sheep tokens. You can use these sheep tokens to Link Summon the same way as above.