Turning every single trade into a losing proposition for your opponent is nice, and removal is great with Vren, too
If Cactus Preserve becomes a creature but you haven't controlled it continuously since your most recent turn began, you won't be able to activate its mana ability or attack with it that turn
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However, in the context of pre-Synchro dueling, a lot of Seto Kaibas synergies on this deck allow him to switch from his straightforward god-crushing strategy via Obelisk the Tormentor to his ages-old Blue-Eyes Devastation
The cutest Prismatic Evolutions cards Perhaps unsurprisingly, the Eeveelutions take center stage in terms of being adorable, but there are a few little pals joining them
More research might reveal the truth down the line