Sharuum is a combo machine, easily enabling infinite combos such as Phyrexian Metamorph + Disciple of the Vault for infinite pings and so much more
While Mindwrack Demon is impressive as an early threat, the flexibility offered by Traverse the Ulvenwald in long games seems like it may end up ultimately being the real payoff for the mechanic
halimar tidecaller WotC themselves draw a distinction between 'design' and 'development', where design is making cards and development is adapting those cards to the limited / standard environment
Minions of Team Skull and a cavalcade of new Pokmon stand ready to battle in the Pokmon TCG:Sun & MoonBurning Shadowsexpansion
This is a relatively mild ability by itself, but it can be complemented well with several cards
10 Poison Barb Is A Multi-Faceted Card Celestial Guardians - Lunala (146/155) Poison Barb is probably the most versatile Tool card in Celestial Guardians, thanks to its ability to provide Pokmon with the ability to dish out a Special Condition automatically