The ability to pay mana and ping each opponent isn't incredibly powerful, but it is a way to keep things rolling in decks such as Rakdos, Lord of Riots or the more recent Ob Nixilis, Captive Kingpin without having to have spells or other nonland permanents around to help generate life loss
During your opponent's turn (Quick Effect), you can: Immediately after this effect resolves, Fusion Summon 1 Fusion Monster from your Extra Deck, using materials from your hand or either field, including this face-up card
Many of these are about mana in one or more ways, just as a heads up
A 2/4 with deathtouch for four mana, Lynde states that if a curse under its owner's control would be put into a graveyard, it is returned to the battlefield attached to its owner at the beginning of the next end step
If you have any questions, please comment
The short answer is yes, we absolutely need more copies of Ranger-Captain of Eos floating around out there