Cornelius, the Rune Knight

You may only activate one ability a turn.
{r} Gain Trample until end of turn.
{w}{w} Gain Flying until end of turn.
{g}{g}{g} Gain +3/+3 until end of turn.
{r}{w}{w}{g}{g}{g} Gain Trample, Flying, and +3/+3
until end of turn.