Bogam, Hand of the Guildless

As long as it's your turn, monocolored spells you
cast cost {w}{u}{b}{r}{g} less to cast. This effect
reduces only the amount of colored mana you
pay.
Whenever a Gate enters the battlefield, untap it.
{4}: Target Gate you control becomes a copy of
target multicolored permanent until end of turn.
It's still a land. Activate only once each turn.