They were first introduced in the 1996 MTG set Mirage, but variations on the original fetch lands have cropped up in plenty of other places - including Onslaught, Zendikar, and Streets of New Capenna
Overall, Valgavoth is just as scary in play as it is in the lore, and will prove very difficult to deal with once it hits the table
--- ### Ramp & Fixing The mana base is well-supported with: - **Sol Ring** - **Arcane Signet** - **Chromatic Lantern** - **Ornithopter of Paradise** - **Solemn Simulacrum** - Strong tri-color lands (Command Tower, Exotic Orchard, shock/check lands, pain lands) Temur colors demand strong fixing, and this list does a good job supporting it
Theres a very convoluted combo with Vorel of the Hull Clade and Intruder Alarm to double each funguss counters multiple times during a turn
Your game plan relies on turning one cheap ninjutsu hit into an avalanche of advantage, but that advantage is as fragile as your Ninjas themselves