what are silver bordered cards mtg The All Silver-Bordered Challenge Border Guardian · Unstable (UST)

Now, this is something very few cards manage to do consistently

This MTG Proxy Set is not just a game

[-8] You get an emblem with Whenever a creature dies, return it to the battlefield under your control at the beginning of the next end step. Lifelink Whenever another nontoken creature you control dies, exile Liliana, Heretical Healer, then return her to the battlefield transformed under her owner's control

Its a bit awkward in that UR spells wants to minimize the creatures it runs, BR and RW are aggressive and dont want the game to go long enough for this to matter, and RG has plenty of mana-hungry werewolves to cast

You could win the turn after it drops with enough mana out and that static ability