Green-first 3+ colours Another way to go for mana is to make green a majority colour, and then splash other colours
Theres the alternate win condition too, but this red card is good enough without it since you can get value while setting your opponents back

Reprinted from Vol.1 "Beast Fangs", "Book of Secret Arts", "Legendary Sword", "Power of Kaishin", "Violet Crystal" EX Starter Box and EX-R Starter Box "Ryu-Kishin" Booster R1 "Battle Warrior", "Blue Medicine", "Doron", "Fire Eye", "Hurricail", "Nightmare Scorpion", "Raimei", "Ryu-Kishin", "Synchar", "The Shadow Who Controls the Dark", "Twin Long Rods #1", "Vishwar Randi", "Water Element", "Wattkid", "Wicked Dragon with the Ersatz Head", "Yamatano Dragon Scroll" Booster Chronicle "Blue Medicine", "Raimei", "Wattkid" Other "Happy Lover", "Wings of Wicked Flame" Never reprinted in Japanese "Ancient Jar", "Dark Plant", "Dig Beak", "Djinn the Watcher of the Wind", "Droll Bird", "Embryonic Beast", "Gate Deeg", "Graveyard and the Hand of Invitation", "Lucky Trinket", "Man-Eating Plant", "Mech Mole Zombie", "Midnight Fiend", "Mystical Capture Chain", "Phantom Dewan", "Phantom Ghost", "The Melting Red Shadow", "Weather Control" Printed in the TCG seven monsters ("Battle Warrior", "Dig Beak", "Droll Bird", "Happy Lover", "Ryu-Kishin", "Wattkid", "Wings of Wicked Flame"), both Normal Spell Cards ("Blue Medicine" and "Raimei"), all five Equip Spell Cards ("Beast Fangs", "Book of Secret Arts", "Legendary Sword", "Power of Kaishin", "Violet Crystal")

Its very easy to trigger, in other words, which makes Caretakers Talent a white Phyrexian Arena at a baseline
Storage & protection Protect your 155-card Generations master set with archival binders, perfect-fit sleeves, and top loaders for the chase cards