Skirmish Rhino I know, this card is not Siege Rhino, but it's a good impression at 3 mana with a smaller but good body
I am as yet unconvinced this game isnt Yu-Gi-Oh in disguise
Still, the ability to play cards ahead of schedule is powerful, thus making Chrome Mox an elite card in Legacy and beyond
If you cast High Noon, you've already cast at least one spell that turn (High Noon itself) so you won't be able to cast any more spells until the next turn
Finding ways to raise your attack damage is crucial, which is why Giovanni and Rocky Helmet are important to the deck
It does have the distinction of being what is probably the most powerful individual card in Guilds of Ravnica limited, contending with fellow surveillor Doom Whisperer and card advantage engine Experimental Frenzy, not to mention Niv-Mizzet