A tiger

You had decided to combine him with a tiger. You had the man strapped naked onto a table. He was a little difficult at first, but after you cast a dizzy spell on him he was much easier to handle. The ritual could begin.

You collected some tiger-hairs and placed them on the man's stomach. You placed your hand over it and summoned your magic. This put an ethereal glow over your subject. The man started to become worried and asked "What are you doing?"

You chose to ignore him and continue the spell.

"Stop it." He said softly.

You continued to ignore him and persisted the spell.

The man began breathing heavily. He felt something was happening to him.

"Stop it! Stop it, please! Somebody, help me!" He tried to say. He was too dizzy to resist at all and was completely at your mercy.

Finally the preparations were complete. The merging could begin.

The man's stomach became like liquid, allowing the tiger-hair to disappear into it. While the hairs were absorbed by the man's body, he started to change.

First was his hair color, which changed to orange with some black streaks.

Then came his ears. They moved up his head and became pointy. There also grew hair on them.

He grew a long thin tail. The same orange hairs grew on it as well, together with the black lines.

The muscles in his chest swelled and gave him a bulkier physique.

His fingers kept their shape, but his nails turned into retractable claws.

The last thing to change were his eyes. His irises became yellow and the pupils elongated.

Once that was done, the merging was complete. You ended the spell and retracted your hand.

You had turned the man into a tiger-man.