Ways to make creatures unblockable as a static ability are fantastic, especially for Voltron decks that focus on putting a ton of Aura and Equipment onto one creature
Pros- Easy mana creation Flexible backside Cons Mono red Lacks card draw Who Likes it Birgi players are those that like to always have mana to cast spells, while they may not have a ton of cards in hand, they always have the mana to make impactful casts
While it's hard to say for sure, it seems like this version of Skullclamp would probably be a (mostly) fair Magic card
The flashback mode is comically expensive though, so I wouldnt count on it much
But dice rolling just isnt really a prominent mechanic
This effect can either be used to bolster your mana ramp, increase the stats on your creatures, or even decrease the stats on your opponents creatures