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This seems relevant

The battle frenzy has taken Tömas now; his eyes shine in berzerk anger and his mouth begins to flow with a light that makes his face take on a demonic look. A moment later a torrent of energy floods out from between his lips, propelled inoxerably forward by his scream of rage.

Do some really high-level spiral beam thing, delivered via yelling. Dedicate all my mana to it so it can do the most damage possible.

That or 'FINGER'.

Merlin twists his hand some more, the glow brightening until he's holding what looks like the phone bit of a cable phone, with the number pad down the middle of the handle. The cable, glowing blue and looking kinda holographic, extends into Merlin's index finger, and it stretches out as he floats the phone over to Johnny.
The fact that this particular spell remembered what numbers it called was just a security measure, really.

Ah good, that's all I need for a bluff.

Yes it is.

Merlin gestures and the tea floats over to his hand, the handle warping slightly to fit his fingers. 
"Who do you need to call?" he says, rotating his hand which has begun to glow slightly.