The 'excess damage' clause is a funny way of saying this is a one-way fight spell with trample, letting you clear a creature out of the way and send all the extra damage at that creature's controller
If the person youre trying to buy for always buys their own cards, and theyve already got everything on this list, then getting them a gift card for an online TCG store such as Magic Madhouse in the UK or TCGplayer over in the US - or, ideally, their friendly local game store, is an excellent way to make sure theyll be happy, but still shows youve put some thought into things
This could include offset issues, like the Arcane Maelstrom deck images shown above, non-factory cut sheets, or even cards with unrounded corners or those crimped in the packaging
Further Reading Most of the information here came from the Wikipedia entry on card advantage as well as Magics own introduction to card advantage
This card isnt the most popular but, in old school Yu-Gi-Oh, was quite formidable