If an effect makes an opponent's card value be ignored, does it still apply when Beowulf later changes that value with Ancient Heirloom Rage or a boost?

Question

Accepted Answer

Yes. An ignore-the-value effect is not a cancel effect. It lasts for the whole combat, so the attack value the attacker ends on does not matter.

Unmatched: Little Red Riding Hood vs. Beowulf

If an effect makes an opponent's card value be ignored, does it still apply when Beowulf later changes that value with Ancient Heirloom Rage or a boost?