Raptors run a weird play near the end of the first, anyone know what it is/called

Raptors take the lead on a ridiculous bounce for RJ Barrett

I am very new NBA fan tonight was my very first NBA game Quick question what it this move called

Mitchell misses the floater Raptor ball with 21 seconds left with them up 1 Cavs call time out

Brandon Ingram with the block RJ Barrett scores the layup and Brandon Ingram hits the buzzer beater 3-pointer to end the 1st half and the Raptors take the lead - 38-36 Yes you read it right

Schroder hits a 3 Raptors call a timeout James Harden goes to pick up the ball at the Raptors' bench and RJ Barrett doesn't like it and a nothing burger kerfuffle ensues with replaysNo technicals or ejections upon review

Jamal Shead forces the 8 second violation to give the Toronto Raptors possession - and a chance to take the lead