Hakbal has a tried and true design of putting card advantage and ramp on your commander, and the first ability scales with how many Merfolk you have on board
A player might even finish off their opponent in either game without having to attack, especially where black or red mana in MTG is concerned
Earthlink added more pain to losing a creature than ever before, as it made a player sacrifice a land when its creature went into the graveyard and Spectral Shield was the best in protecting a creature, as in addition to the +0/+2 boost it stated that this creature cannot be the target of further spells. There were gold creatures as well, Merieke Ri Berit, the legend, allowed you to gain control of target creature, but the the most widely used and celebrated gold legend from Ice Age was Skeleton Ship
Retreat cost is 1 energy
But Pokmon really leaned into that uniformity like it was a sacred rule carved into cardstock
No, a single changeling creature cannot count as a full party