(Equipment, Auras you control, and counters are modifications.) Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.) Once Obstinate Gargoyle has been blocked, causing it to gain flying by modifying it won't cause it to stop being blocked
For example, a 1/1 creature that enters the battlefield with two +1/+1 counters on it will cause a 2/2 Sharp-Eyed Rookie's ability to trigger
Your opponent wont know what hit them
When it comes to Standard, Scourge Wolf has one big problem for the next six moths, and that problem is Abbot of Keral Keep
If any cards have the End of your turn keyword, you may activate them after your Main Phase
Similarly, both Omnath, Locus of the Roil and Endurance, which sell for $8.50, are well-played staples