Whenever Angelic Cub becomes the target of a spell or ability for the first time each turn, put a +1/+1 counter on it.

As long as Angelic Cub has three or more +1/+1 counters on it, it has flying.

Flying

Whenever Glyph Keeper becomes the target of a spell or ability for the first time each turn, counter that spell or ability.

Embalm {5}{U}{U} ({5}{U}{U}, Exile this card from your graveyard: Create a token that’s a copy of it, except it’s a white Zombie Sphinx with no mana cost. Embalm only as a sorcery.)

Flying

Whenever Jetting Glasskite becomes the target of a spell or ability for the first time each turn, counter that spell or ability.

Flying

Creatures you control have “Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability.”

Flying

Whenever Shimmering Glasskite becomes the target of a spell or ability for the first time each turn, counter that spell or ability.