At time of writing, there are only two known commons that reward this unnamed mechanic: Arena Trickster, which turns from an unexciting Hill Giant into a Rampaging Baloth (and can continue to grow), and Naiad of Hidden Coves, which allows you to play two Vexing Gulls on turn four
You can only choose one of them, but each is potentially pretty powerful and useful in different situations
Also, we cant forget about deathtouch-themed decks that focus on cards like Hooded Blightfang and Fynn, the Fangbearer
Tasigur, the Golden Fang Tasigur, the Golden Fangs size as a 4/5 for potentially 1 mana is already good, but the fact that it has built-in card advantage is what seals the deal
Taii Wakeen, Perfect Shot The draw ability on Taii Wakeen, Perfect Shot is strong, especially with spells like Earthquake that hit multiple creatures, but were here for the second ability
Build Your Perfect Removal Suite Today No Commander deck is complete without a thoughtful removal package