It's not only too slow, it actually hurts:
---------- ArkhamAngel: turn 7 ----------
ArkhamAngel - plays Golem
ArkhamAngel - reveals Copper, Tournament, Estate, Estate, Silver, Silver, Copper, Potion, Copper, Copper, Tournament
ArkhamAngel - discards: Copper, Estate, Estate, Silver, Silver, Copper, Potion, Copper, Copper
ArkhamAngel - plays Tournament
ArkhamAngel - shuffles deck
ArkhamAngel - draws Estate
ArkhamAngel - plays Tournament
ArkhamAngel - draws Copper
ArkhamAngel - plays 4 Copper
ArkhamAngel - buys Gold
ArkhamAngel - gains Gold
ArkhamAngel - draws Copper, Estate, Silver, Silver, Copper
Well, it's okish, as the next purchase is a gold, but still..