Value: $10,000 #5 Tropical Mega Battle Promo Available during the Challenge Road Pokemon events in 1999, Tropical Mega Battle cards were awarded as the top prize for winners of these side-event competitions
If "Axel" and "Roxas" are used as materials, Riku becomes a lightning rod for your opponent's effects while getting no damage whatsoever: This means that while "Aqua" is busy getting an incredible amount of ATK, Riku can protect her from card effects
I personally really like the dopamine rush I get from hearing my phone go *cha-ching* a few times a day, so I often undercut (or get close to it) myself
Like Mickey, she features the Bodyguard attribute that allows her to enter play exerted and forces enemy challengers to target her before most other cards
The downside is, unless you actively want to be dumping your hand into the graveyard, you need creatures with high power in order to make Greater Good worth it