Emergent Woodwurm
Creature — Wurm
Whenever this creature attacks, look at the top X cards of your library, where X is its power. You may put a permanent card with mana value X or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order.
Legal in
Legacy, Vintage, Commander
Rulings (6)
The abilities that backup grants to the target creature are determined only once, at the time the ability triggers. They won’t change if the permanent with backup loses any abilities before the backup ability resolves.
2023-04-14
If a backup ability targets the creature with backup, that creature will get +1/+1 counters, but it won’t gain additional abilities.
2023-04-14
Backup confers only abilities that are actually printed below it. Any abilities that are gained by the permanent are ignored, including abilities gained due to a resolving spell or ability or copy effects.
2023-04-14
If a permanent enters the battlefield as a copy of a card with a backup ability or a token is created that is a copy of that card, the order of the printed abilities is maintained.
2023-04-14