Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, another target creature you control gets +X/+X until end of turn, where X is this creature's power."
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Ancient Copper DragonBorderless368 · mythic$166.92
Ancient Copper Dragon161 · mythic$134.27
Ancient Copper DragonShowcase396 · mythic$129.89
Ancient Silver DragonBorderless366 · mythic$76.31
Ancient Brass DragonBorderless367 · mythic$62.01
Ancient Silver DragonShowcase382 · mythic$56.34
Ancient Silver Dragon56 · mythic$43.82
Ancient Gold DragonBorderless365 · mythic$43.46
Ancient Brass DragonShowcase389 · mythic$43.29
Astral DragonExtended Art613 · rare$42.41
Ancient Brass Dragon111 · mythic$40.73
Astral Dragon664 · rare$40.60
Hardy Outlander