Whenever a creature an opponent control dies, they may pay 3 life
In fact whenever things do tilt a bit too far towards a certain deck in particular - looking at you, Mewtwo, Celebi, Darkrai and, as anyone familiar with my personal TCG toils will know I'm about to say: a certain Team Galactic's Cyrus - much of the game's most enjoyable moments have come from trying out new ways to topple it
However, there are a couple of unexpectedly valuable cards
There's so much action and emotion behind this cracking bit of artwork by GIDORA
The gargantuan Orbeetle VMAX definitely checks that box
To answer this question, we must clarify that to Link Summon a monster, you only need a combined Link Rating equal to the Link Rating on the bottom right of the card (as long as the Link Material also fulfills the Summon Requirements at the top of the text Box)