Avalanche Caller

The whole design hinges on the word "snow." A repeatable land-animation costing only two generic mana is aggressively cheap, and the payoff (a 4/4 with hexproof and haste, immune to targeted removal and attacking the turn it comes online) would be reckless on any two-mana body if it worked on lands generally. The snow requirement is the tax: the animated land has to come from a snow manabase, so the reward is gated behind a deckbuilding commitment rather than raw mana, and that gating is what lets the ability be so generous. The 1/3 frame does quiet work too, sitting above the one-toughness line that a lot of cheap sweeper-adjacent burn reaches, so the wizard survives to keep pointing at your snow lands turn after turn. Because each land it animates stays a land, the threats are cheap and interchangeable: the caller can turn a different land into a 4/4 each turn, and any land not currently animated is just a land, safe from creature removal. While a land is a creature, it also can't be targeted by spells or abilities your opponents control. The vulnerability is the caller itself. Kill the wizard and the engine stops; a board wipe takes the whole plan with it, since the animation only lasts until end of turn and needs the caller alive to renew. It belongs to a lineage of build-around wizards whose text does little until the manabase is bent to serve it, then pays that bend back with a recurring, protection-laden clock.