These cards fit into almost any elemental strategy and I'd include them in any typal Elemental list
If any creatures with banding you control are blocking or being blocked by a creature, you divide that creatures combat damage, not its controller, among any of the creatures its being blocked by or is blocking.) My Aesthir is my most trusted ally
but the ones that paralyze everyone's lands tend to raise more of an eyebrow
Anything over four is deadly in most cases, but get ready to see a lot of coins get flipped
Alternatively you could end up putting exactly what you need right into your graveyard
You can load them up with counters, double those counters with things like Vorinclex, Monstrous Raider, slap on some equipment like Sword of Fire and Ice, or enchant your unblockable creatures with Eldrazi Conscription and the like