draw x cards mtg Top 10 Colorless in Magic: The Gathering What does x mean on

From the looks of things, Wizards of the Coast is going to let the Allosaurus Rider Neoform deck be legal post-transition to the London Mulligan rule for at least some time, so having access to Force of Negation helps prevent you from dying to nonsense before you even manage to cast an Aether Vial

Which do you favor

Pinnacle Starcage Alright, now let's be sensible

Herd Heirloom Restrictive mana rocks are rather dicey, but Herd Heirloom makes up for it with the strong secondary ability

Thats a lot of hoops to jump through just to get a legend onto the field, but at least it lasts until your next turn, so cards like Jin-Gitaxias, Progress Tyrant have a whole round to punish your opponents before they revert back to whatever they were