Whenever Altanak becomes the target of a spell or ability an opponent controls, draw a card.
, Discard this card: Return target land card from your graveyard to the battlefield tapped.
Cast a big mono-green stompy curve, ramp hard into Altanak as a 7-mana beater that punishes opponents for targeting it by drawing cards. Use the graveyard land-recursion ability for value when you don't need him in play, then close games with trampling fatties, big mana payoffs, and overrun-style swings.
Built-in card advantage in a color that struggles for it — opponents can't safely target him with removal or interaction
Flexible: works from the command zone as a finisher or pitched for land ramp acceleration
Trample makes him hard to chump and a great target for buffs
Mono-green consistency with strong, cheap ramp and tutors for lands/creatures
Seven mana is steep; he's a do-nothing-the-turn-he-lands beater without haste
Board wipes, edicts, and -X/-X effects sidestep the targeted-draw clause entirely
Mono-green lacks interaction, card filtering, and counterspells
Draw trigger relies on opponents choosing to target him — savvy tables just ignore him