While it's phased out, it's treated as though it doesn't exist.) Sandstorm Rarity: Common TYPE: Instant SUBTYPE: - CMC: 1 Mana cost: USD: $0.24 EUR: 0.24 TIX: 0.07 EDHREC RANK: 23008 Sandstorm deals 1 damage to each attacking creature
That means that if you play Frodo, Determined Hero when Swiftfoot Boots is in play - which grants hexproof and haste - you can attack straight away and it cant be targeted, and the attack will trigger the effect again, allowing you to put another equipment card on the Ring-bearer

Arcades, the Strategist Archers of Qarsi Archers' Parapet Assault Formation Atla Palani, Nest Tender Axebane Guardian Bamboo Grove Archer Bristlepack Sentry Carnivorous Plant Carven Caryatid Dormant Sliver Drowsing Tyrannodon Felothar the Steadfast Floriferous Vinewall Gatecreeper Vine Glade Watcher Grappling Sundew Grave Bramble Hornet Nest Infested Roothold Jaddi Offshoot Jungle Barrier Jungle Patrol Krotiq Nestguard Lure Mindbender Spores Overgrown Arch Overgrown Battlement Platypus-Bear Portcullis Vine Rampart Architect Rouse the Swarm Saruli Caretaker Scuttlegator Sparring Dummy Sporocyst Sprouting Phytohydra Sylvan Caryatid Territorial Witchstalker Thallid Shell-Dweller The Fantastic Four The Pride of Hull Clade Tinder Wall Towering Titan Traproot Kami Tree of Redemption Trestle Troll Ulvenwald Captive Vine Trellis Wall Crawl Wall of Blossoms Wall of Brambles Wall of Ice Wall of Mulch Wall of Pine Needles Wall of Roots Wall of Vines Wall of Wood Welcome to

As if that wasnt enough of a deterrent already, the dream with it is capped kind of tightly
Hangarback WalkerHangarback Walker more straighforwardly turns mana into damage, and can use its ability to repeat that effect if you make it to the next turn without having won
Zone-change triggered abilities that care about the new color (like "when a [color] permanent enters" or "when you cast a [color] spell") will work because those effects apply after the card is already in its new zone