Original version Niv-Mizzet, the Firemind has that ability built in by simply tapping
(A parenthetical aside to my paragraphical aside - yeah, I just made up that word, whee
Its hard to hit it with damage-based removal spells since it can connive at will, and once it gets bigger, you can recover some life by attacking
Even with things like Mox Opal fixing any colour for you, without any actual effort made to support a colour even a single splash for a super powerful card such as this is just not worth it for your consistency
(2021-06-18) If you choose a target creature you own and that creature isn't a legal target as the triggered ability tries to resolve, that ability won't resolve and none of its effects will happen
Scalpers and resellers have been a constant annoyance in the Pokmon TCG hobby since its explosion in popularity following the COVID-19 pandemic and a subsequent market bubble around elusive, high-value cards and booster boxes that has yet to burst