Along with its 2,700 Attack and 2,000 Defense points, Trishula has the ability, where, if Trishula is Synchro Summoned, proceed to remove up to one card each from your opponents hand, field, and Graveyard
Sometimes it takes most of your resources on your worries-free turn to have progressed your Game Advancement sword to be ready to close the game, but without easy access to haste in mono-white, you have to lean on Game Control in one of a few ways: you can phase yourself out or you can strip your opponents of their ability to stop you
@banks has also put together a gallery of scans of the EX era reverse holos, which show the intricacies of the patterned foils (not the flat foils) a lot better
Trespasser's Curse Trespasser's Curse is a recurring source of lifegain and lifedrain for the decks that want that, which helps with the central weakness of curses: that they only attach to one player