Water is weak to 2 types, which they receive double the damage from: [19] Grass - Plants absorb water through their roots
Finale of Revelation is played for 2 blue mana plus whatever you want to throw down for X, which determines the number of cards you'll draw
Overall, Magcargo ex might not be as good as other Tera Pokmon, but it is still a versatile attacker in some situations
The Ace: As leader of Team Satisfaction of the Satellite, Kiryu was noted to be the greatest duelist amongst the Enforcers, and possibly the whole Satellite, as he lead them towards victory every time
So of course, this means more Ryzeals you can use
Xyz Summon "Superdreadnought Rail Cannon Gustav Rocket" using "Gustav Max" and discarding 1 card