Removing a shield counter in this way isn't the same as regenerating a creature.
29-04-2022
wotc
If the target is illegal as Boon of Safety attempts to resolve, it will be removed from the stack and its controller will not scry.
29-04-2022
wotc
“Shield” is not an ability that creatures have and shield counters are not keyword counters. If a creature with a shield counter loses its abilities, the shield counter will still protect it as normal.
29-04-2022
wotc
A creature with a shield counter on it may still be destroyed by state-based actions if it has damage marked on it equal to its toughness or has been dealt unpreventable damage by a source with deathtouch.
29-04-2022
wotc
If a permanent with a shield counter is dealt unpreventable damage, that damage will be dealt and a shield counter will still be removed.
29-04-2022
wotc
Shield counters don't prevent players from sacrificing creatures.
29-04-2022
wotc
If a permanent that would be dealt damage has more than one shield counter on it, that damage is prevented and only one shield counter is removed.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.