Targeted removal: Swords to Plowshares, Pongify, Beast Within, etc
Then for Omen you can sweep all non-Dragons by reducing their size by X amount
They're not basic, so effects that search for basic lands (such as the ability of a Lander token) can't find them, but they do have the appropriate land types for effects such as that of Willowrush Verge (from the Aetherdrift release)
Magic Extra Life 2019 Since this article first ran, Magic Extra Life has already raised over $50,000 for Seattle Childrens Hospitaland were just getting started
Combine that with cards like Novice Inspector and Voldaren Epicure, which make artifact tokens as they enter the battlefield, and youre golden
History Early reprint policy Before the establishment of the Reserved List, Wizards attempted to maintain collector value by using the card's border color to differentiate between original printings and reprints