All decks use mana and lands to some extent, most a large one and so it is very rare you do not vastly help your opponent with this if you let them have turns with it
Tainted Remedy won't go infinite with Exquisite Blood either because there's nothing that would cause an opponent to gain life again, so it's a nonbo
We decided to push planeswalkers back until we had a design we liked, which ended up being in Lorwyn
Effects which take mana into your mana pool are usually interrupts, so you can get mana for your spells quickly enough to respond to your rival's actions
With cards like Hellrider kicking out other recent four-drops like Moltensteel Dragon (which is actually a four-drop) and red getting more curve-toppers like Thundermaw Hellkite and Zealous Conscripts, RPTS is another card that was better years ago as it was a curve-topper that could be supplemented by another three or four mana spell at the top of the curve when you alpha striked
Giada is many things an aggressively costed evasive creature prime for wearing equipment