It triggers whenever you play a land, as well as whenever a spell or ability puts a land onto the battlefield under your control
Heres an outline: 5-8 removal spells 4-6 card draw spells (including flashback cards) 4-6 payoffs (Sahagin, Shantotto, etc.) 2-3 other creatures (Wyvern, Ice Flan, etc.) 17 lands The deck is fairly simple to put together, and really doesnt want much outside of removal, card draw, and payoffs
Theres the other side of the coin regarding the Ruby/Sapphire match-up, where they get to focus on ramping cards and rely on their powerful top decks
I know its clich to say FF7 is the best, but holy crap this deck is cool
A Rush ability lets him take an immediate offensive, which can then be backed up by the ability to ready after banishing other characters in challenges