Titanbones, Towering Heart

Below 38-point Ouroboroid as a four-drop: 4/3 reach has a serviceable floor, but it needs repeated lifegain and offers no immediate value.

Could be wrong if The unrevealed set or existing Standard pool could provide a dense, resilient repeat-lifegain shell.

Pioneer efficiency makes a four-mana creature without an ETB effect a weak prospect; unsupported repeat lifegain leaves it below the 30-point benchmark.

Could be wrong if A previously underused lifegain-and-counters shell could make the scaling trigger more reliable than expected.

A four-mana 4/3 that needs later lifegain triggers is far below Modern's normal impact rate and lacks the immediate utility of regular creature options.

Could be wrong if An established discard or lifegain combo could value the discard life trigger in a way not shown by the context.

Legacy offers no credible role for a four-mana, removal-vulnerable creature with no immediate effect; repeat lifegain is too slow to matter.

Could be wrong if A novel compact combo using its discard trigger would be required, and none is supported by the supplied context.

Repeatable lifegain can make Titanbones a large threat in dedicated counters decks, but it provides no value on entry and lacks evasion beyond reach.

Could be wrong if Actual lifegain-trigger density and the availability of more useful counter payoffs determine whether it earns a slot.

A 4/3 reach for four is a solid stabilizer that blocks flyers; any incidental lifelink can make it dominate combat, though the trigger is not assured.

Could be wrong if Draft speed, removal density, and lifegain support are unknown, so its body may prove merely replacement-level or better.