Ruby Storm has essentially zero interaction for your creatures and is racing to assemble a storm kill, so this matchup is almost entirely about your clock speed versus their combo turn. Lifelink adds extra life buffer against a potential storm-based burn finish (e.g. a big Electric Revelation-fueled turn backed by burn), while Aqueous Form provides extra evasion and a scry to dig for your fastest Hexproof draws. Keep the core engine maximally intact and prioritize mulliganing to the fastest possible Cloak/Mask draw, since this matchup is won or lost on tempo, not on interaction.