When Bull Elephant enters the battlefield, sacrifice it unless you return two Forests you control to their owner's hand.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Black creatures can't attack you.

Nonblack creatures can't attack you unless their controller pays for each creature they control that's attacking you.

Enchant creature

Enchanted creature gets +3/+3.

When enchanted creature dies, create a 3/3 green Elephant creature token.

Kicker (You may pay an additional as you cast this spell.)

When Excavation Elephant enters the battlefield, if it was kicked, return target artifact card from your graveyard to your hand.

Trample; banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Whenever Rabid Elephant becomes blocked, it gets +2/+2 until end of turn for each creature blocking it.

When Rogue Elephant enters the battlefield, sacrifice it unless you sacrifice a Forest.

Trample

: Vintara Elephant loses trample until end of turn. Any player may activate this ability.

Trample